Optical properties of AFe2As2 ( A=Ca , Sr, and Ba) single crystals

Dai, Y. M.; Akrap, Ana; Bud'ko, S. L.; Canfield, P. C.; Homes, C. C.

doi:10.1103/PhysRevB.94.195142

Title: Optical properties of $A {Fe}_{2} {As}_{2}$ ( $A = Ca$ , Sr, and Ba) single crystals

Abstract

The detailed optical properties have been determined for the iron-based materials A Fe₂ As₂, where A = Ca , Sr, and Ba, for light polarized in the iron-arsenic (a-b) planes over a wide frequency range, above and below the magnetic and structural transitions at T_N = 138 , 195, and 172 K, respectively. The real and imaginary parts of the complex conductivity are fit simultaneously using two Drude terms in combination with a series of oscillators. Above T_N, the free-carrier response consists of a weak, narrow Drude term, and a strong, broad Drude term, both of which show only a weak temperature dependence. Below T_N there is a slight decrease of the plasma frequency but a dramatic drop in the scattering rate for the narrow Drude term, and for the broad Drude term there is a significant decrease in the plasma frequency, while the decrease in the scattering rate, albeit significant, is not as severe. The small values observed for the scattering rates for the narrow Drude term for T << T_N may be related to the Dirac conelike dispersion of the electronic bands. Below T N new features emerge in the optical conductivity that are associated with the reconstructionmore »« less

Authors:

Dai, Y. M. ^[1]; Akrap, Ana ^[2]; Bud'ko, S. L. ^[3]; Canfield, P. C. ^[3]; Homes, C. C. ^[1]

Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Dept.
Univ. of Geneva (Switzerland)
Ames Lab. and Iowa State Univ., Ames, IA (United States). Dept. of Physics and Astronomy

Publication Date:: Wed Nov 23 00:00:00 EST 2016

Research Org.:: Brookhaven National Laboratory (BNL), Upton, NY (United States); Ames Laboratory (AMES), Ames, IA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES); Swiss National Science Foundation (SNSF)

OSTI Identifier:: 1342646

Alternate Identifier(s):: OSTI ID: 1333342; OSTI ID: 1342913

Report Number(s):: BNL-113461-2017-JA; IS-J-9159
Journal ID: ISSN 2469-9950; PRBMDO; R&D Project: PO016; KC0202020; TRN: US1701213

Grant/Contract Number:: SC0012704; AC02-07CH11358

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review B

Additional Journal Information:: Journal Volume: 94; Journal Issue: 19; Journal ID: ISSN 2469-9950

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE

Citation Formats


                    Dai, Y. M., Akrap, Ana, Bud'ko, S. L., Canfield, P. C., and Homes, C. C. Optical properties of AFe2As2 ( A=Ca , Sr, and Ba) single crystals.  United States: N. p., 2016. 
Web.  doi:10.1103/PhysRevB.94.195142.

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                    Dai, Y. M., Akrap, Ana, Bud'ko, S. L., Canfield, P. C., & Homes, C. C. Optical properties of AFe2As2 ( A=Ca , Sr, and Ba) single crystals.  United States.  https://doi.org/10.1103/PhysRevB.94.195142

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                    Dai, Y. M., Akrap, Ana, Bud'ko, S. L., Canfield, P. C., and Homes, C. C. Wed .  
"Optical properties of AFe2As2 ( A=Ca , Sr, and Ba) single crystals".  United States.  https://doi.org/10.1103/PhysRevB.94.195142.  https://www.osti.gov/servlets/purl/1342646.

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@article{osti_1342646,

  title        = {Optical properties of AFe2As2 ( A=Ca , Sr, and Ba) single crystals},

  author       = {Dai, Y. M. and Akrap, Ana and Bud'ko, S. L. and Canfield, P. C. and Homes, C. C.},

  abstractNote = {The detailed optical properties have been determined for the iron-based materials A Fe2 As2, where A = Ca , Sr, and Ba, for light polarized in the iron-arsenic (a-b) planes over a wide frequency range, above and below the magnetic and structural transitions at TN = 138 , 195, and 172 K, respectively. The real and imaginary parts of the complex conductivity are fit simultaneously using two Drude terms in combination with a series of oscillators. Above TN, the free-carrier response consists of a weak, narrow Drude term, and a strong, broad Drude term, both of which show only a weak temperature dependence. Below TN there is a slight decrease of the plasma frequency but a dramatic drop in the scattering rate for the narrow Drude term, and for the broad Drude term there is a significant decrease in the plasma frequency, while the decrease in the scattering rate, albeit significant, is not as severe. The small values observed for the scattering rates for the narrow Drude term for T << TN may be related to the Dirac conelike dispersion of the electronic bands. Below T N new features emerge in the optical conductivity that are associated with the reconstruction Fermi surface and the gapping of bands at Δ1 ≃ 45 – 80 meV, and Δ2 ≃ 110 – 210 meV. In conclusion, the reduction in the spectral weight associated with the free carriers is captured by the gap structure; specifically, the spectral weight from the narrow Drude term appears to be transferred into the low-energy gap feature, while the missing weight from the broad term shifts to the high-energy gap.},

  doi          = {10.1103/PhysRevB.94.195142},

  journal      = {Physical Review B},

  number       = 19,

  volume       = 94,

  place        = {United States},

  year         = {Wed Nov 23 00:00:00 EST 2016},

  month        = {Wed Nov 23 00:00:00 EST 2016}

}

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Works referenced in this record:

Determination of the phase diagram of the electron-doped superconductor $Ba {({Fe}_{1 - x} {Co}_{x})}_{2} {As}_{2}$
journal, January 2009

Chu, Jiun-Haw; Analytis, James G.; Kucharczyk, Chris
Physical Review B, Vol. 79, Issue 1
DOI: 10.1103/PhysRevB.79.014506

Spin-density-wave anomaly at 140 K in the ternary iron arsenide ${BaFe}_{2} {As}_{2}$
journal, July 2008

Rotter, Marianne; Tegel, Marcus; Johrendt, Dirk
Physical Review B, Vol. 78, Issue 2
DOI: 10.1103/PhysRevB.78.020503

Optical conductivity of nodal metals
journal, December 2013

Homes, C. C.; Tu, J. J.; Li, J.
Scientific Reports, Vol. 3, Issue 1
DOI: 10.1038/srep03446

Unconventional electronic reconstruction in undoped $(Ba, Sr) {Fe}_{2} {As}_{2}$ across the spin density wave transition
journal, November 2009

Yi, M.; Lu, D. H.; Analytis, J. G.
Physical Review B, Vol. 80, Issue 17
DOI: 10.1103/PhysRevB.80.174510

Lattice and magnetic instabilities in ${CaFe}_{2} {As}_{2}$ : A single-crystal neutron diffraction study
journal, September 2008

Goldman, A. I.; Argyriou, D. N.; Ouladdiaf, B.
Physical Review B, Vol. 78, Issue 10
DOI: 10.1103/PhysRevB.78.100506

Magnetism and charge dynamics in iron pnictides
journal, February 2011

Yin, Z. P.; Haule, K.; Kotliar, G.
Nature Physics, Vol. 7, Issue 4
DOI: 10.1038/nphys1923

Measurement of the $c$ -Axis Optical Reflectance of $A {Fe}_{2} {As}_{2}$ ( $A = Ba$ , Sr) Single Crystals: Evidence of Different Mechanisms for the Formation of Two Energy Gaps
journal, August 2010

Chen, Z. G.; Dong, T.; Ruan, R. H.
Physical Review Letters, Vol. 105, Issue 9
DOI: 10.1103/PhysRevLett.105.097003

Effects of Co substitution on thermodynamic and transport properties and anisotropic $H_{c 2}$ in $Ba {({Fe}_{1 - x} {Co}_{x})}_{2} {As}_{2}$ single crystals
journal, December 2008

Ni, N.; Tillman, M. E.; Yan, J. -Q.
Physical Review B, Vol. 78, Issue 21
DOI: 10.1103/PhysRevB.78.214515

Anisotropy of the In-Plane Resistivity of Underdoped $Ba ({Fe}_{1 - x} {Co}_{x})_{2} {As}_{2}$ Superconductors Induced by Impurity Scattering in the Antiferromagnetic Orthorhombic Phase
journal, May 2013

Ishida, S.; Nakajima, M.; Liang, T.
Physical Review Letters, Vol. 110, Issue 20
DOI: 10.1103/PhysRevLett.110.207001

Magneto-Optical Signature of Massless Kane Electrons in ${Cd}_{3} {As}_{2}$
journal, September 2016

Akrap, A.; Hakl, M.; Tchoumakov, S.
Physical Review Letters, Vol. 117, Issue 13
DOI: 10.1103/PhysRevLett.117.136401

Decoupling of the superconducting and magnetic/structural phase transitions in electron-doped ${BaFe}_{2} {As}_{2}$
journal, August 2009

Canfield, P. C.; Bud’ko, S. L.; Ni, Ni
Physical Review B, Vol. 80, Issue 6
DOI: 10.1103/PhysRevB.80.060501

Spin-density-wave-induced anomalies in the optical conductivity of $A$ Fe $_{2}$ As $_{2}$ , ( $A = Ca$ , Sr, Ba) single-crystalline iron pnictides
journal, November 2013

Charnukha, A.; Pröpper, D.; Larkin, T. I.
Physical Review B, Vol. 88, Issue 18
DOI: 10.1103/PhysRevB.88.184511

Normal-state charge dynamics in doped BaFe2As2: Roles of doping and necessary ingredients for superconductivity
journal, July 2014

Nakajima, M.; Ishida, S.; Tanaka, T.
Scientific Reports, Vol. 4, Issue 1
DOI: 10.1038/srep05873

Structural and magnetic phase transitions in the ternary iron arsenides SrFe ₂ As ₂ and EuFe ₂ As ₂
journal, October 2008

Tegel, Marcus; Rotter, Marianne; Weiß, Veronika
Journal of Physics: Condensed Matter, Vol. 20, Issue 45
DOI: 10.1088/0953-8984/20/45/452201

Origin of the Spin Density Wave Instability in $A {Fe}_{2} {As}_{2}$ ( $A = Ba, Sr$ ) as Revealed by Optical Spectroscopy
journal, December 2008

Hu, W. Z.; Dong, J.; Li, G.
Physical Review Letters, Vol. 101, Issue 25
DOI: 10.1103/PhysRevLett.101.257005

Complete pressure-dependent phase diagrams for ${SrFe}_{2} {As}_{2}$ and ${BaFe}_{2} {As}_{2}$
journal, June 2009

Colombier, E.; Bud’ko, S. L.; Ni, N.
Physical Review B, Vol. 79, Issue 22
DOI: 10.1103/PhysRevB.79.224518

Superconductivity up to 30 K in the vicinity of the quantum critical point in BaFe ₂ (As _{1− x} P _x ) ₂
journal, August 2009

Jiang, Shuai; Xing, Hui; Xuan, Guofang
Journal of Physics: Condensed Matter, Vol. 21, Issue 38
DOI: 10.1088/0953-8984/21/38/382203

Zero-resistance superconducting phase in ${BaFe}_{2} {As}_{2}$ under high pressure
journal, May 2009

Ishikawa, Fumihiro; Eguchi, Naoya; Kodama, Michihiro
Physical Review B, Vol. 79, Issue 17
DOI: 10.1103/PhysRevB.79.172506

Electronic Structure and Unusual Exchange Splitting in the Spin-Density-Wave State of the ${BaFe}_{2} {As}_{2}$ Parent Compound of Iron-Based Superconductors
journal, March 2009

Yang, L. X.; Zhang, Y.; Ou, H. W.
Physical Review Letters, Vol. 102, Issue 10
DOI: 10.1103/PhysRevLett.102.107002

Structural transition and anisotropic properties of single-crystalline ${SrFe}_{2} {As}_{2}$
journal, July 2008

Yan, J. -Q.; Kreyssig, A.; Nandi, S.
Physical Review B, Vol. 78, Issue 2
DOI: 10.1103/PhysRevB.78.024516

Optical spectroscopy study of the three-dimensional Dirac semimetal ${ZrTe}_{5}$
journal, August 2015

Chen, R. Y.; Zhang, S. J.; Schneeloch, J. A.
Physical Review B, Vol. 92, Issue 7
DOI: 10.1103/PhysRevB.92.075107

High-temperature superconductivity in iron-based materials
journal, August 2010

Paglione, Johnpierre; Greene, Richard L.
Nature Physics, Vol. 6, Issue 9
DOI: 10.1038/nphys1759

Uniaxial-strain mechanical detwinning of ${CaFe}_{2} {As}_{2}$ and ${BaFe}_{2} {As}_{2}$ crystals: Optical and transport study
journal, May 2010

Tanatar, M. A.; Blomberg, E. C.; Kreyssig, A.
Physical Review B, Vol. 81, Issue 18
DOI: 10.1103/PhysRevB.81.184508

Orbital-Dependent Modifications of Electronic Structure across the Magnetostructural Transition in ${BaFe}_{2} {As}_{2}$
journal, February 2010

Shimojima, T.; Ishizaka, K.; Ishida, Y.
Physical Review Letters, Vol. 104, Issue 5
DOI: 10.1103/PhysRevLett.104.057002

Optical spectroscopy study of the collapsed tetragonal phase of ${CaFe}_{2} ({As}_{0.935} P_{0.065})_{2}$ single crystals
journal, October 2014

Wang, X. B.; Wang, H. P.; Dong, T.
Physical Review B, Vol. 90, Issue 14
DOI: 10.1103/PhysRevB.90.144513

Dramatic changes in the electronic structure upon transition to the collapsed tetragonal phase in CaFe $_{2}$ As $_{2}$
journal, January 2014

Dhaka, R. S.; Jiang, Rui; Ran, S.
Physical Review B, Vol. 89, Issue 2
DOI: 10.1103/PhysRevB.89.020511

Phonon splitting and anomalous enhancement of infrared-active modes in BaFe $_{2}$ As $_{2}$
journal, August 2011

Schafgans, A. A.; Pursley, B. C.; LaForge, A. D.
Physical Review B, Vol. 84, Issue 5
DOI: 10.1103/PhysRevB.84.052501

Infrared Measurement of the Pseudogap of P-Doped and Co-Doped High-Temperature ${BaFe}_{2} {As}_{2}$ Superconductors
journal, July 2012

Moon, S. J.; Schafgans, A. A.; Kasahara, S.
Physical Review Letters, Vol. 109, Issue 2
DOI: 10.1103/PhysRevLett.109.027006

Coexistence of the spin-density wave and superconductivity in Ba _1−x K _x Fe ₂ As ₂
journal, January 2009

Chen, H.; Ren, Y.; Qiu, Y.
EPL (Europhysics Letters), Vol. 85, Issue 1
DOI: 10.1209/0295-5075/85/17006

Hole and electron contributions to the transport properties of $Ba {({Fe}_{1 - x} {Ru}_{x})}_{2} {As}_{2}$ single crystals
journal, June 2010

Rullier-Albenque, F.; Colson, D.; Forget, A.
Physical Review B, Vol. 81, Issue 22
DOI: 10.1103/PhysRevB.81.224503

Unprecedented anisotropic metallic state in undoped iron arsenide BaFe2As2 revealed by optical spectroscopy
journal, July 2011

Nakajima, M.; Liang, T.; Ishida, S.
Proceedings of the National Academy of Sciences, Vol. 108, Issue 30
DOI: 10.1073/pnas.1100102108

In-plane electronic anisotropy of underdoped ‘122’ Fe-arsenide superconductors revealed by measurements of detwinned single crystals
journal, September 2011

Fisher, I. R.; Degiorgi, L.; Shen, Z. X.
Reports on Progress in Physics, Vol. 74, Issue 12
DOI: 10.1088/0034-4885/74/12/124506

First-order structural phase transition in ${CaFe}_{2} {As}_{2}$
journal, July 2008

Ni, N.; Nandi, S.; Kreyssig, A.
Physical Review B, Vol. 78, Issue 1
DOI: 10.1103/PhysRevB.78.014523

Different resistivity response to spin-density wave and superconductivity at 20 K in Ca _{1− x} Na _x Fe ₂ As ₂
journal, September 2008

Wu, G.; Chen, H.; Wu, T.
Journal of Physics: Condensed Matter, Vol. 20, Issue 42
DOI: 10.1088/0953-8984/20/42/422201

Raman scattering study of spin-density-wave order and electron-phonon coupling in Ba(Fe $_{1 - x}$ Co $_{x}$ ) $_{2}$ As $_{2}$
journal, September 2011

Chauvière, L.; Gallais, Y.; Cazayous, M.
Physical Review B, Vol. 84, Issue 10
DOI: 10.1103/PhysRevB.84.104508

Raman scattering study of spin-density-wave-induced anisotropic electronic properties in $A {Fe}_{2} {As}_{2}$ ( $A = Ca$ , Eu)
journal, May 2016

Zhang, W. -L.; Yin, Z. P.; Ignatov, A.
Physical Review B, Vol. 93, Issue 20
DOI: 10.1103/PhysRevB.93.205106

Superconductivity up to 29 K in SrFe ₂ As ₂ and BaFe ₂ As ₂ at high pressures
journal, December 2008

Alireza, Patricia L.; Ko, Y. T. Chris; Gillett, Jack
Journal of Physics: Condensed Matter, Vol. 21, Issue 1
DOI: 10.1088/0953-8984/21/1/012208

Effect of pressure on the structural phase transition and superconductivity in $({Ba}_{1 - x} K_{x}) {Fe}_{2} {As}_{2}$ ( $x = 0$ and 0.45) and ${SrFe}_{2} {As}_{2}$ single crystals
journal, September 2008

Torikachvili, M. S.; Bud’ko, S. L.; Ni, N.
Physical Review B, Vol. 78, Issue 10
DOI: 10.1103/PhysRevB.78.104527

Anisotropic charge dynamics in detwinned Ba(Fe _1-x Co _x ) ₂ As ₂
journal, February 2011

Dusza, A.; Lucarelli, A.; Pfuner, F.
EPL (Europhysics Letters), Vol. 93, Issue 3
DOI: 10.1209/0295-5075/93/37002

Temperature-induced change in the Fermi surface topology in the spin density wave phase of Sr(Fe $_{1 - x}$ Co $_{x}$ ) $_{2}$ As $_{2}$
journal, March 2014

Yang, Y. -X.; Gallais, Y.; Rullier-Albenque, F.
Physical Review B, Vol. 89, Issue 12
DOI: 10.1103/PhysRevB.89.125130

Angle-resolved photoemission study of the role of nesting and orbital orderings in the antiferromagnetic phase of BaFe $_{2}$ As $_{2}$
journal, July 2011

Fuglsang Jensen, M.; Brouet, V.; Papalazarou, E.
Physical Review B, Vol. 84, Issue 1
DOI: 10.1103/PhysRevB.84.014509

Optical conductivity and Raman scattering of iron superconductors
journal, February 2013

Valenzuela, B.; Calderón, M. J.; León, G.
Physical Review B, Vol. 87, Issue 7
DOI: 10.1103/PhysRevB.87.075136

${FeTe}_{0.55} {Se}_{0.45}$ : A multiband superconductor in the clean and dirty limit
journal, April 2015

Homes, C. C.; Dai, Y. M.; Wen, J. S.
Physical Review B, Vol. 91, Issue 14
DOI: 10.1103/PhysRevB.91.144503

Observation of Dirac Cone Electronic Dispersion in ${BaFe}_{2} {As}_{2}$
journal, March 2010

Richard, P.; Nakayama, K.; Sato, T.
Physical Review Letters, Vol. 104, Issue 13
DOI: 10.1103/PhysRevLett.104.137001

Physical and magnetic properties of $Ba {({Fe}_{1 - x} {Ru}_{x})}_{2} {As}_{2}$ single crystals
journal, July 2010

Thaler, A.; Ni, N.; Kracher, A.
Physical Review B, Vol. 82, Issue 1
DOI: 10.1103/PhysRevB.82.014534

Fermi-Surface Reconstruction and Complex Phase Equilibria in ${CaFe}_{2} {As}_{2}$
journal, May 2014

Gofryk, K.; Saparov, B.; Durakiewicz, T.
Physical Review Letters, Vol. 112, Issue 18
DOI: 10.1103/PhysRevLett.112.186401

Electronic structure studies of ${BaFe}_{2} {As}_{2}$ by angle-resolved photoemission spectroscopy
journal, April 2009

Fink, J.; Thirupathaiah, S.; Ovsyannikov, R.
Physical Review B, Vol. 79, Issue 15
DOI: 10.1103/PhysRevB.79.155118

Electronic structure and doping in ${BaFe}_{2} {As}_{2}$ and LiFeAs: Density functional calculations
journal, September 2008

Singh, D. J.
Physical Review B, Vol. 78, Issue 9
DOI: 10.1103/PhysRevB.78.094511

Appearance of pressure-induced superconductivity in ${BaFe}_{2} {As}_{2}$ under hydrostatic conditions and its extremely high sensitivity to uniaxial stress
journal, June 2010

Yamazaki, Takehiro; Takeshita, Nao; Kobayashi, Ryosuke
Physical Review B, Vol. 81, Issue 22
DOI: 10.1103/PhysRevB.81.224511

Technique for measuring the reflectance of irregular, submillimeter-sized samples
journal, January 1993

Homes, Christopher C.; Reedyk, M.; Cradles, D. A.
Applied Optics, Vol. 32, Issue 16
DOI: 10.1364/AO.32.002976

Electrodynamics of the nodal metal state in weakly doped high- $T_{c}$ cuprates
journal, August 2005

Lee, Y. S.; Segawa, Kouji; Li, Z. Q.
Physical Review B, Vol. 72, Issue 5
DOI: 10.1103/PhysRevB.72.054529

Superconductivity at 38 K in the Iron Arsenide $({Ba}_{1 - x} K_{x}) {Fe}_{2} {As}_{2}$
journal, September 2008

Rotter, Marianne; Tegel, Marcus; Johrendt, Dirk
Physical Review Letters, Vol. 101, Issue 10
DOI: 10.1103/PhysRevLett.101.107006

Charge dynamics of the spin-density-wave state in BaFe2As2
journal, February 2009

Pfuner, F.; Analytis, J. G.; Chu, J. -H.
The European Physical Journal B, Vol. 67, Issue 4
DOI: 10.1140/epjb/e2009-00062-2

FeAs-Based Superconductivity: A Case Study of the Effects of Transition Metal Doping on BaFe ₂ As ₂
journal, August 2010

Canfield, Paul C.; Bud'ko, Sergey L.
Annual Review of Condensed Matter Physics, Vol. 1, Issue 1
DOI: 10.1146/annurev-conmatphys-070909-104041

Infrared phonon anomaly in ${BaFe}_{2} {As}_{2}$
journal, November 2009

Akrap, A.; Tu, J. J.; Li, L. J.
Physical Review B, Vol. 80, Issue 18
DOI: 10.1103/PhysRevB.80.180502

Optical properties of the perfectly compensated semimetal ${WTe}_{2}$
journal, October 2015

Homes, C. C.; Ali, M. N.; Cava, R. J.
Physical Review B, Vol. 92, Issue 16
DOI: 10.1103/PhysRevB.92.161109

Optical investigations of the normal and superconducting states reveal two electronic subsystems in iron pnictides
journal, March 2010

Wu, D.; Barišić, N.; Kallina, P.
Physical Review B, Vol. 81, Issue 10
DOI: 10.1103/PhysRevB.81.100512

High-temperature superconductivity in iron pnictides and chalcogenides
journal, March 2016

Si, Qimiao; Yu, Rong; Abrahams, Elihu
Nature Reviews Materials, Vol. 1, Issue 4
DOI: 10.1038/natrevmats.2016.17

Spin and lattice structures of single-crystalline ${SrFe}_{2} {As}_{2}$
journal, October 2008

Zhao, Jun; Ratcliff, W.; Lynn, J. W.
Physical Review B, Vol. 78, Issue 14
DOI: 10.1103/PhysRevB.78.140504

In-Plane Resistivity Anisotropy in an Underdoped Iron Arsenide Superconductor
journal, August 2010

Chu, J. -H.; Analytis, J. G.; De Greve, K.
Science, Vol. 329, Issue 5993
DOI: 10.1126/science.1190482

Unconventional Superconductivity and Antiferromagnetic Quantum Critical Behavior in the Isovalent-Doped ${BaFe}_{2} ({As}_{1 - x} P_{x})_{2}$
journal, September 2010

Nakai, Y.; Iye, T.; Kitagawa, S.
Physical Review Letters, Vol. 105, Issue 10
DOI: 10.1103/PhysRevLett.105.107003

Superconductivity at 22 K in Co-Doped ${BaFe}_{2} {As}_{2}$ Crystals
journal, September 2008

Sefat, Athena S.; Jin, Rongying; McGuire, Michael A.
Physical Review Letters, Vol. 101, Issue 11
DOI: 10.1103/PhysRevLett.101.117004

Correlation, doping, and interband effects on the optical conductivity of iron superconductors
journal, September 2014

Calderón, M. J.; Medici, L. de'; Valenzuela, B.
Physical Review B, Vol. 90, Issue 11
DOI: 10.1103/PhysRevB.90.115128

Resistivity anisotropy of $A {Fe}_{2} {As}_{2}$ ( $A = Ca$ , Sr, Ba): Direct versus Montgomery technique measurements
journal, April 2009

Tanatar, M. A.; Ni, N.; Samolyuk, G. D.
Physical Review B, Vol. 79, Issue 13
DOI: 10.1103/PhysRevB.79.134528

The puzzle of high temperature superconductivity in layered iron pnictides and chalcogenides
journal, October 2010

Johnston, David C.
Advances in Physics, Vol. 59, Issue 6
DOI: 10.1080/00018732.2010.513480

Charge dynamics of the spin-density-wave state in BaFe2As2
text, January 2009

Pfuner, F.; Analytis, J. G.; Chu, J. -H.
ETH Zurich
DOI: 10.3929/ethz-b-000017809

Mobility of the Doped Holes and the Antiferromagnetic Correlations in Underdoped High-Tc Cuprates
text, January 2001

Ando, Yoichi; Komiya, Seiki; Lavrov, A. N.
The American Physical Society
DOI: 10.17877/de290r-10261

Different resistivity response to spin density wave and superconductivity at 20 K in $Ca_{1-x}Na_xFe_2As_2$
text, January 2008

Wu, G.; Chen, H.; Wu, T.
arXiv
DOI: 10.48550/arxiv.0806.4279

Structural and magnetic phase transitions in the ternary iron arsenides SrFe2As2 and EuFe2As2
text, January 2008

Tegel, Marcus; Rotter, Marianne; Weiss, Veronika
arXiv
DOI: 10.48550/arxiv.0806.4782

FeAs-based superconductivity: a case study of the effects of transition metal doping on BaFe2As2
text, January 2010

Canfield, Paul C.; Bud'ko, Sergey L.
arXiv
DOI: 10.48550/arxiv.1002.0858

Physical and magnetic properties of Ba(Fe$_{1-x}$Ru$_x$)$_2$As$_2$ single crystals
text, January 2010

Thaler, A.; Ni, N.; Kracher, A.
arXiv
DOI: 10.48550/arxiv.1006.3298

High-temperature superconductivity in iron-based materials
text, January 2010

Paglione, Johnpierre; Greene, Richard L.
arXiv
DOI: 10.48550/arxiv.1006.4618

Anisotropic charge dynamics in detwinned Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$
text, January 2010

Dusza, A.; Lucarelli, A.; Pfuner, F.
arXiv
DOI: 10.48550/arxiv.1007.2543

Optical conductivity and Raman scattering of iron superconductors
text, January 2012

Valenzuela, B.; Calderon, M. J.; Leon, G.
arXiv
DOI: 10.48550/arxiv.1212.4765

Dramatic Changes in the Electronic Structure Upon Transition to the Collapsed Tetragonal Phase in CaFe2As2
text, January 2014

Dhaka, R. S.; Jiang, Rui; Ran, S.
arXiv
DOI: 10.48550/arxiv.1401.5416

Correlation, doping and interband effects on the optical conductivity of iron superconductors
text, January 2014

Calderón, M. J.; Medici, L. de'; Valenzuela, B.
arXiv
DOI: 10.48550/arxiv.1407.6935

High Temperature Superconductivity in Iron Pnictides and Chalcogenides
text, January 2016

Si, Qimiao; Yu, Rong; Abrahams, Elihu
arXiv
DOI: 10.48550/arxiv.1604.03566

Works referencing / citing this record:

Optical and photoemission investigation of structural and magnetic transitions in the iron-based superconductor ${Sr}_{0.67} {Na}_{0.33} {Fe}_{2} {As}_{2}$
journal, December 2019

Yang, R.; Huang, J. W.; Zaki, N.
Physical Review B, Vol. 100, Issue 23
DOI: 10.1103/physrevb.100.235132

Two-Dimensional Massless Dirac Fermions in Antiferromagnetic $A {Fe}_{2} {As}_{2}$ $(A = Ba, Sr)$
journal, August 2017

Chen, Zhi-Guo; Wang, Luyang; Song, Yu
Physical Review Letters, Vol. 119, Issue 9
DOI: 10.1103/physrevlett.119.096401

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Title: Optical properties of A Fe 2 As 2 ( A=Ca , Sr, and Ba) single crystals

Abstract

Citation Formats

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Superconductivity at 22 K in Co-Doped BaFe 2 As 2 Crystals journal, September 2008

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Charge dynamics of the spin-density-wave state in BaFe2As2 text, January 2009

Mobility of the Doped Holes and the Antiferromagnetic Correlations in Underdoped High-Tc Cuprates text, January 2001

Different resistivity response to spin density wave and superconductivity at 20 K in $Ca_{1-x}Na_xFe_2As_2$ text, January 2008

Structural and magnetic phase transitions in the ternary iron arsenides SrFe2As2 and EuFe2As2 text, January 2008

FeAs-based superconductivity: a case study of the effects of transition metal doping on BaFe2As2 text, January 2010

Physical and magnetic properties of Ba(Fe$_{1-x}$Ru$_x$)$_2$As$_2$ single crystals text, January 2010

High-temperature superconductivity in iron-based materials text, January 2010

Anisotropic charge dynamics in detwinned Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$ text, January 2010

Optical conductivity and Raman scattering of iron superconductors text, January 2012

Dramatic Changes in the Electronic Structure Upon Transition to the Collapsed Tetragonal Phase in CaFe2As2 text, January 2014

Correlation, doping and interband effects on the optical conductivity of iron superconductors text, January 2014

High Temperature Superconductivity in Iron Pnictides and Chalcogenides text, January 2016

Title: Optical properties of $A {Fe}_{2} {As}_{2}$ ( $A = Ca$ , Sr, and Ba) single crystals

Determination of the phase diagram of the electron-doped superconductor $Ba {({Fe}_{1 - x} {Co}_{x})}_{2} {As}_{2}$
journal, January 2009

Spin-density-wave anomaly at 140 K in the ternary iron arsenide ${BaFe}_{2} {As}_{2}$
journal, July 2008

Optical conductivity of nodal metals
journal, December 2013

Unconventional electronic reconstruction in undoped $(Ba, Sr) {Fe}_{2} {As}_{2}$ across the spin density wave transition
journal, November 2009

Lattice and magnetic instabilities in ${CaFe}_{2} {As}_{2}$ : A single-crystal neutron diffraction study
journal, September 2008

Magnetism and charge dynamics in iron pnictides
journal, February 2011

Measurement of the $c$ -Axis Optical Reflectance of $A {Fe}_{2} {As}_{2}$ ( $A = Ba$ , Sr) Single Crystals: Evidence of Different Mechanisms for the Formation of Two Energy Gaps
journal, August 2010

Effects of Co substitution on thermodynamic and transport properties and anisotropic $H_{c 2}$ in $Ba {({Fe}_{1 - x} {Co}_{x})}_{2} {As}_{2}$ single crystals
journal, December 2008

Anisotropy of the In-Plane Resistivity of Underdoped $Ba ({Fe}_{1 - x} {Co}_{x})_{2} {As}_{2}$ Superconductors Induced by Impurity Scattering in the Antiferromagnetic Orthorhombic Phase
journal, May 2013

Magneto-Optical Signature of Massless Kane Electrons in ${Cd}_{3} {As}_{2}$
journal, September 2016

Decoupling of the superconducting and magnetic/structural phase transitions in electron-doped ${BaFe}_{2} {As}_{2}$
journal, August 2009

Spin-density-wave-induced anomalies in the optical conductivity of $A$ Fe $_{2}$ As $_{2}$ , ( $A = Ca$ , Sr, Ba) single-crystalline iron pnictides
journal, November 2013

Normal-state charge dynamics in doped BaFe2As2: Roles of doping and necessary ingredients for superconductivity
journal, July 2014

Structural and magnetic phase transitions in the ternary iron arsenides SrFe ₂ As ₂ and EuFe ₂ As ₂
journal, October 2008

Origin of the Spin Density Wave Instability in $A {Fe}_{2} {As}_{2}$ ( $A = Ba, Sr$ ) as Revealed by Optical Spectroscopy
journal, December 2008

Complete pressure-dependent phase diagrams for ${SrFe}_{2} {As}_{2}$ and ${BaFe}_{2} {As}_{2}$
journal, June 2009

Superconductivity up to 30 K in the vicinity of the quantum critical point in BaFe ₂ (As _{1− x} P _x ) ₂
journal, August 2009

Zero-resistance superconducting phase in ${BaFe}_{2} {As}_{2}$ under high pressure
journal, May 2009

Electronic Structure and Unusual Exchange Splitting in the Spin-Density-Wave State of the ${BaFe}_{2} {As}_{2}$ Parent Compound of Iron-Based Superconductors
journal, March 2009

Structural transition and anisotropic properties of single-crystalline ${SrFe}_{2} {As}_{2}$
journal, July 2008

Optical spectroscopy study of the three-dimensional Dirac semimetal ${ZrTe}_{5}$
journal, August 2015

High-temperature superconductivity in iron-based materials
journal, August 2010

Uniaxial-strain mechanical detwinning of ${CaFe}_{2} {As}_{2}$ and ${BaFe}_{2} {As}_{2}$ crystals: Optical and transport study
journal, May 2010

Orbital-Dependent Modifications of Electronic Structure across the Magnetostructural Transition in ${BaFe}_{2} {As}_{2}$
journal, February 2010

Optical spectroscopy study of the collapsed tetragonal phase of ${CaFe}_{2} ({As}_{0.935} P_{0.065})_{2}$ single crystals
journal, October 2014

Dramatic changes in the electronic structure upon transition to the collapsed tetragonal phase in CaFe $_{2}$ As $_{2}$
journal, January 2014

Phonon splitting and anomalous enhancement of infrared-active modes in BaFe $_{2}$ As $_{2}$
journal, August 2011

Infrared Measurement of the Pseudogap of P-Doped and Co-Doped High-Temperature ${BaFe}_{2} {As}_{2}$ Superconductors
journal, July 2012

Coexistence of the spin-density wave and superconductivity in Ba _1−x K _x Fe ₂ As ₂
journal, January 2009

Hole and electron contributions to the transport properties of $Ba {({Fe}_{1 - x} {Ru}_{x})}_{2} {As}_{2}$ single crystals
journal, June 2010

Unprecedented anisotropic metallic state in undoped iron arsenide BaFe2As2 revealed by optical spectroscopy
journal, July 2011

In-plane electronic anisotropy of underdoped ‘122’ Fe-arsenide superconductors revealed by measurements of detwinned single crystals
journal, September 2011

First-order structural phase transition in ${CaFe}_{2} {As}_{2}$
journal, July 2008

Different resistivity response to spin-density wave and superconductivity at 20 K in Ca _{1− x} Na _x Fe ₂ As ₂
journal, September 2008

Raman scattering study of spin-density-wave order and electron-phonon coupling in Ba(Fe $_{1 - x}$ Co $_{x}$ ) $_{2}$ As $_{2}$
journal, September 2011

Raman scattering study of spin-density-wave-induced anisotropic electronic properties in $A {Fe}_{2} {As}_{2}$ ( $A = Ca$ , Eu)
journal, May 2016

Superconductivity up to 29 K in SrFe ₂ As ₂ and BaFe ₂ As ₂ at high pressures
journal, December 2008

Effect of pressure on the structural phase transition and superconductivity in $({Ba}_{1 - x} K_{x}) {Fe}_{2} {As}_{2}$ ( $x = 0$ and 0.45) and ${SrFe}_{2} {As}_{2}$ single crystals
journal, September 2008

Anisotropic charge dynamics in detwinned Ba(Fe _1-x Co _x ) ₂ As ₂
journal, February 2011

Temperature-induced change in the Fermi surface topology in the spin density wave phase of Sr(Fe $_{1 - x}$ Co $_{x}$ ) $_{2}$ As $_{2}$
journal, March 2014

Angle-resolved photoemission study of the role of nesting and orbital orderings in the antiferromagnetic phase of BaFe $_{2}$ As $_{2}$
journal, July 2011

Optical conductivity and Raman scattering of iron superconductors
journal, February 2013

${FeTe}_{0.55} {Se}_{0.45}$ : A multiband superconductor in the clean and dirty limit
journal, April 2015

Observation of Dirac Cone Electronic Dispersion in ${BaFe}_{2} {As}_{2}$
journal, March 2010

Physical and magnetic properties of $Ba {({Fe}_{1 - x} {Ru}_{x})}_{2} {As}_{2}$ single crystals
journal, July 2010

Fermi-Surface Reconstruction and Complex Phase Equilibria in ${CaFe}_{2} {As}_{2}$
journal, May 2014

Electronic structure studies of ${BaFe}_{2} {As}_{2}$ by angle-resolved photoemission spectroscopy
journal, April 2009

Electronic structure and doping in ${BaFe}_{2} {As}_{2}$ and LiFeAs: Density functional calculations
journal, September 2008

Appearance of pressure-induced superconductivity in ${BaFe}_{2} {As}_{2}$ under hydrostatic conditions and its extremely high sensitivity to uniaxial stress
journal, June 2010

Technique for measuring the reflectance of irregular, submillimeter-sized samples
journal, January 1993

Electrodynamics of the nodal metal state in weakly doped high- $T_{c}$ cuprates
journal, August 2005

Superconductivity at 38 K in the Iron Arsenide $({Ba}_{1 - x} K_{x}) {Fe}_{2} {As}_{2}$
journal, September 2008

Charge dynamics of the spin-density-wave state in BaFe2As2
journal, February 2009

FeAs-Based Superconductivity: A Case Study of the Effects of Transition Metal Doping on BaFe ₂ As ₂
journal, August 2010

Infrared phonon anomaly in ${BaFe}_{2} {As}_{2}$
journal, November 2009

Optical properties of the perfectly compensated semimetal ${WTe}_{2}$
journal, October 2015

Optical investigations of the normal and superconducting states reveal two electronic subsystems in iron pnictides
journal, March 2010

High-temperature superconductivity in iron pnictides and chalcogenides
journal, March 2016

Spin and lattice structures of single-crystalline ${SrFe}_{2} {As}_{2}$
journal, October 2008

In-Plane Resistivity Anisotropy in an Underdoped Iron Arsenide Superconductor
journal, August 2010

Unconventional Superconductivity and Antiferromagnetic Quantum Critical Behavior in the Isovalent-Doped ${BaFe}_{2} ({As}_{1 - x} P_{x})_{2}$
journal, September 2010

Superconductivity at 22 K in Co-Doped ${BaFe}_{2} {As}_{2}$ Crystals
journal, September 2008

Correlation, doping, and interband effects on the optical conductivity of iron superconductors
journal, September 2014

Resistivity anisotropy of $A {Fe}_{2} {As}_{2}$ ( $A = Ca$ , Sr, Ba): Direct versus Montgomery technique measurements
journal, April 2009

The puzzle of high temperature superconductivity in layered iron pnictides and chalcogenides
journal, October 2010

Charge dynamics of the spin-density-wave state in BaFe2As2
text, January 2009

Mobility of the Doped Holes and the Antiferromagnetic Correlations in Underdoped High-Tc Cuprates
text, January 2001

Different resistivity response to spin density wave and superconductivity at 20 K in $Ca_{1-x}Na_xFe_2As_2$
text, January 2008

Structural and magnetic phase transitions in the ternary iron arsenides SrFe2As2 and EuFe2As2
text, January 2008

FeAs-based superconductivity: a case study of the effects of transition metal doping on BaFe2As2
text, January 2010

Physical and magnetic properties of Ba(Fe$_{1-x}$Ru$_x$)$_2$As$_2$ single crystals
text, January 2010

High-temperature superconductivity in iron-based materials
text, January 2010

Anisotropic charge dynamics in detwinned Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$
text, January 2010

Optical conductivity and Raman scattering of iron superconductors
text, January 2012

Dramatic Changes in the Electronic Structure Upon Transition to the Collapsed Tetragonal Phase in CaFe2As2
text, January 2014

Correlation, doping and interband effects on the optical conductivity of iron superconductors
text, January 2014

High Temperature Superconductivity in Iron Pnictides and Chalcogenides
text, January 2016

Optical and photoemission investigation of structural and magnetic transitions in the iron-based superconductor ${Sr}_{0.67} {Na}_{0.33} {Fe}_{2} {As}_{2}$
journal, December 2019

Two-Dimensional Massless Dirac Fermions in Antiferromagnetic $A {Fe}_{2} {As}_{2}$ $(A = Ba, Sr)$
journal, August 2017