Effect of Electron Irradiation on Superconductivity in Single Crystals of Ba ( Fe 1 − x Ru x ) 2 As 2 ( x = 0.24 )

Prozorov, R.; Kończykowski, M.; Tanatar, M. A.; Thaler, A.; Bud’ko, S. L.; Canfield, P. C.; Mishra, V.; Hirschfeld, P. J.

doi:10.1103/PhysRevX.4.041032

Title: Effect of Electron Irradiation on Superconductivity in Single Crystals of $Ba ({Fe}_{1 - x} {Ru}_{x})_{2} {As}_{2}$ ( $x = 0.24$ )

Abstract

A single crystal of isovalently substituted Ba(Fe_1-xRu_x)₂As₂ (x=0.24) is sequentially irradiated with 2.5 MeV electrons up to a maximum dose of 2.1×10¹⁹ e^-/cm². The electrical resistivity is measured in situ at T=22 K during the irradiation and ex situ as a function of temperature between subsequent irradiation runs. Upon irradiation, the superconducting transition temperature T_c decreases and the residual resistivity ρ0 increases. We find that electron irradiation leads to the fastest suppression of T_c compared to other types of artificially introduced disorder, probably due to the strong short-range potential of the pointlike irradiation defects. As a result, a more detailed analysis within a multiband scenario with variable scattering potential strength shows that the observed T_c versus ρ₀ is fully compatible with s_± pairing, in contrast to earlier claims that this model leads to a too rapid suppression of T_c with scattering.

Authors:: Prozorov, R.; Kończykowski, M.; Tanatar, M. A.; Thaler, A.; Bud’ko, S. L.; Canfield, P. C.; Mishra, V.; Hirschfeld, P. J.

Publication Date:: Tue Nov 18 00:00:00 EST 2014

Research Org.:: Ames Lab., Ames, IA (United States); Argonne National Lab. (ANL), Argonne, IL (United States); Energy Frontier Research Centers (EFRC) (United States). Center for Emergent Superconductivity (CES)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1181610

Alternate Identifier(s):: OSTI ID: 1166898; OSTI ID: 1210285; OSTI ID: 1223322

Report Number(s):: IS-J-8486
Journal ID: ISSN 2160-3308; PRXHAE; 041032

Grant/Contract Number:: AC02-07CH11358; FG02-05ER46236; AC0298CH1088; 11-11-0121; AC02-98CH1088; AC02-98CH10886; AC02-06CH11357

Resource Type:: Published Article

Journal Name:: Physical Review. X

Additional Journal Information:: Journal Name: Physical Review. X Journal Volume: 4 Journal Issue: 4; Journal ID: ISSN 2160-3308

Publisher:: American Physical Society

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; condensed matter physics; strongly correlated materials; superconductivity; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; phonons; thermal conductivity; energy storage (including batteries and capacitors); defects; spin dynamics

Citation Formats


                    Prozorov, R., Kończykowski, M., Tanatar, M. A., Thaler, A., Bud’ko, S. L., Canfield, P. C., Mishra, V., and Hirschfeld, P. J. Effect of Electron Irradiation on Superconductivity in Single Crystals of Ba ( Fe 1 − x Ru x ) 2 As 2 ( x = 0.24 ).  United States: N. p., 2014. 
Web.  doi:10.1103/PhysRevX.4.041032.

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                    Prozorov, R., Kończykowski, M., Tanatar, M. A., Thaler, A., Bud’ko, S. L., Canfield, P. C., Mishra, V., & Hirschfeld, P. J. Effect of Electron Irradiation on Superconductivity in Single Crystals of Ba ( Fe 1 − x Ru x ) 2 As 2 ( x = 0.24 ).  United States.  https://doi.org/10.1103/PhysRevX.4.041032

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                    Prozorov, R., Kończykowski, M., Tanatar, M. A., Thaler, A., Bud’ko, S. L., Canfield, P. C., Mishra, V., and Hirschfeld, P. J. Tue .  
"Effect of Electron Irradiation on Superconductivity in Single Crystals of Ba ( Fe 1 − x Ru x ) 2 As 2 ( x = 0.24 )".  United States.  https://doi.org/10.1103/PhysRevX.4.041032.

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@article{osti_1181610,

  title        = {Effect of Electron Irradiation on Superconductivity in Single Crystals of Ba ( Fe 1 − x Ru x ) 2 As 2 ( x = 0.24 )},

  author       = {Prozorov, R. and Kończykowski, M. and Tanatar, M. A. and Thaler, A. and Bud’ko, S. L. and Canfield, P. C. and Mishra, V. and Hirschfeld, P. J.},

  abstractNote = {A single crystal of isovalently substituted Ba(Fe1-xRux)2As2 (x=0.24) is sequentially irradiated with 2.5 MeV electrons up to a maximum dose of 2.1×1019 e-/cm2. The electrical resistivity is measured in situ at T=22 K during the irradiation and ex situ as a function of temperature between subsequent irradiation runs. Upon irradiation, the superconducting transition temperature Tc decreases and the residual resistivity ρ0 increases. We find that electron irradiation leads to the fastest suppression of Tc compared to other types of artificially introduced disorder, probably due to the strong short-range potential of the pointlike irradiation defects. As a result, a more detailed analysis within a multiband scenario with variable scattering potential strength shows that the observed Tc versus ρ0 is fully compatible with s± pairing, in contrast to earlier claims that this model leads to a too rapid suppression of Tc with scattering.},

  doi          = {10.1103/PhysRevX.4.041032},

  journal      = {Physical Review. X},

  number       = 4,

  volume       = 4,

  place        = {United States},

  year         = {Tue Nov 18 00:00:00 EST 2014},

  month        = {Tue Nov 18 00:00:00 EST 2014}

}

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Works referenced in this record:

A Sharp Peak of the Zero-Temperature Penetration Depth at Optimal Composition in BaFe2(As1-xPx)2
journal, June 2012

Hashimoto, K.; Cho, K.; Shibauchi, T.
Science, Vol. 336, Issue 6088
DOI: 10.1126/science.1219821

Disorder-induced transition between $s_{\pm}$ and $s_{+ +}$ states in two-band superconductors
journal, November 2011

Efremov, D. V.; Korshunov, M. M.; Dolgov, O. V.
Physical Review B, Vol. 84, Issue 18
DOI: 10.1103/PhysRevB.84.180512

Nonmagnetic impurity effects and neutron scattering spectrum in iron pnictides
journal, November 2010

Onari, S.; Kontani, H.
Physica C: Superconductivity and its Applications, Vol. 470, Issue 20
DOI: 10.1016/j.physc.2010.05.021

Effects of Ru substitution on electron correlations and Fermi-surface dimensionality in Ba(Fe $_{1 - x}$ Ru $_{x}$ ) $_{2}$ As $_{2}$
journal, August 2012

Xu, N.; Qian, T.; Richard, P.
Physical Review B, Vol. 86, Issue 6
DOI: 10.1103/PhysRevB.86.064505

Systematic study of the superconducting and normal-state properties of neutron-irradiated ${MgB}_{2}$
journal, April 2006

Wilke, R. H. T.; Bud’ko, S. L.; Canfield, P. C.
Physical Review B, Vol. 73, Issue 13
DOI: 10.1103/PhysRevB.73.134512

Effects of Disordered Ru Substitution in ${BaFe}_{2} {As}_{2}$ : Possible Realization of Superdiffusion in Real Materials
journal, January 2013

Wang, Limin; Berlijn, Tom; Wang, Yan
Physical Review Letters, Vol. 110, Issue 3
DOI: 10.1103/PhysRevLett.110.037001

Theory of dirty superconductors
journal, September 1959

Anderson, P. W.
Journal of Physics and Chemistry of Solids, Vol. 11, Issue 1-2
DOI: 10.1016/0022-3697(59)90036-8

Field-dependent transport critical current in single crystals of Ba(Fe _{1 − x} TM _x ) ₂ As ₂ (TM = Co, Ni) superconductors
journal, April 2010

Tanatar, M. A.; Ni, N.; Bud’ko, S. L.
Superconductor Science and Technology, Vol. 23, Issue 5
DOI: 10.1088/0953-2048/23/5/054002

Pair breaking in iron pnictides
journal, December 2009

Kogan, V. G.
Physical Review B, Vol. 80, Issue 21
DOI: 10.1103/PhysRevB.80.214532

Radiation effects on MgB ₂ : a review and a comparison with A15 superconductors
journal, February 2008

Putti, M.; Vaglio, R.; Rowell, J. M.
Superconductor Science and Technology, Vol. 21, Issue 4
DOI: 10.1088/0953-2048/21/4/043001

Enhancement of $T_{c}$ by disorder in underdoped iron pnictide superconductors
journal, April 2012

Fernandes, R. M.; Vavilov, M. G.; Chubukov, A. V.
Physical Review B, Vol. 85, Issue 14
DOI: 10.1103/PhysRevB.85.140512

Effect of heavy-ion irradiation on London penetration depth in overdoped Ba(Fe $_{1 - x}$ Co $_{x}$ ) $_{2}$ As $_{2}$
journal, August 2013

Murphy, J.; Tanatar, M. A.; Kim, Hyunsoo
Physical Review B, Vol. 88, Issue 5
DOI: 10.1103/PhysRevB.88.054514

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

First-principles calculation of transition-metal impurities in LaFeAsO
journal, April 2011

Nakamura, Kazuma; Arita, Ryotaro; Ikeda, Hiroaki
Physical Review B, Vol. 83, Issue 14
DOI: 10.1103/PhysRevB.83.144512

Critical temperature of an anisotropic superconductor containing both nonmagnetic and magnetic impurities
journal, October 1998

Openov, Leonid A.
Physical Review B, Vol. 58, Issue 14
DOI: 10.1103/PhysRevB.58.9468

Enhancement of critical current density in Co-doped ${BaFe}_{2} {As}_{2}$ with columnar defects introduced by heavy-ion irradiation
journal, July 2009

Nakajima, Y.; Tsuchiya, Y.; Taen, T.
Physical Review B, Vol. 80, Issue 1
DOI: 10.1103/PhysRevB.80.012510

What Controls the Phase Diagram and Superconductivity in Ru-Substituted ${BaFe}_{2} {As}_{2}$ ?
journal, December 2011

Dhaka, R. S.; Liu, Chang; Fernandes, R. M.
Physical Review Letters, Vol. 107, Issue 26
DOI: 10.1103/PhysRevLett.107.267002

Pair-breaking effects induced by 3-MeV proton irradiation in Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$
journal, December 2013

Taen, Toshihiro; Ohtake, Fumiaki; Akiyama, Hiroki
Physical Review B, Vol. 88, Issue 22
DOI: 10.1103/PhysRevB.88.224514

Violation of Anderson’s Theorem for the Sign-Reversing $s$ -Wave State of Iron-Pnictide Superconductors
journal, October 2009

Onari, Seiichiro; Kontani, Hiroshi
Physical Review Letters, Vol. 103, Issue 17
DOI: 10.1103/PhysRevLett.103.177001

First-Order Transition in the Magnetic Vortex Matter in Superconducting ${MgB}_{2}$ Tuned by Disorder
journal, July 2010

Klein, T.; Marlaud, R.; Marcenat, C.
Physical Review Letters, Vol. 105, Issue 4
DOI: 10.1103/PhysRevLett.105.047001

Suppression of the Critical Temperature of Superconducting NdFeAs(OF) Single Crystals by Kondo-Like Defect Sites Induced by $α$ -Particle Irradiation
journal, February 2010

Tarantini, C.; Putti, M.; Gurevich, A.
Physical Review Letters, Vol. 104, Issue 8
DOI: 10.1103/PhysRevLett.104.087002

Superconductivity suppression of Ba $_{0.5}$ K $_{0.5}$ Fe $_{2 - 2 x} M_{2 x}$ As $_{2}$ single crystals by substitution of transition metal ( $M$ = Mn, Ru, Co, Ni, Cu, and Zn)
journal, June 2012

Li, J.; Guo, Y. F.; Zhang, S. B.
Physical Review B, Vol. 85, Issue 21
DOI: 10.1103/PhysRevB.85.214509

Linear decrease of critical temperature with increasing Zn substitution in the iron-based superconductor BaFe $_{1.89 - 2 x}$ Zn $_{2 x}$ Co $_{0.11}$ As $_{2}$
journal, July 2011

Li, Jun; Guo, Yanfeng; Zhang, Shoubao
Physical Review B, Vol. 84, Issue 2
DOI: 10.1103/PhysRevB.84.020513

Effect of magnetic and nonmagnetic impurities on highly anisotropic superconductivity
journal, June 1997

Golubov, A. A.; Mazin, I. I.
Physical Review B, Vol. 55, Issue 22
DOI: 10.1103/PhysRevB.55.15146

Suppression of the critical temperature of superconducting $Ba {({Fe}_{1 - x} {Co}_{x})}_{2} {As}_{2}$ by point defects from proton irradiation
journal, December 2010

Nakajima, Yasuyuki; Taen, Toshihiro; Tsuchiya, Yuji
Physical Review B, Vol. 82, Issue 22
DOI: 10.1103/PhysRevB.82.220504

Using controlled disorder to distinguish $s_{\pm}$ and $s_{+}_{+}$ gap structure in Fe-based superconductors
journal, March 2013

Wang, Y.; Kreisel, A.; Hirschfeld, P. J.
Physical Review B, Vol. 87, Issue 9
DOI: 10.1103/PhysRevB.87.094504

London penetration depth and strong pair breaking in iron-based superconductors
journal, May 2010

Gordon, R. T.; Kim, H.; Tanatar, M. A.
Physical Review B, Vol. 81, Issue 18
DOI: 10.1103/PhysRevB.81.180501

Electron irradiation of Co, Ni, and P-doped BaFe ₂ As ₂ –type iron-based superconductors
journal, July 2013

van der Beek, Cornelis Jacominus; Demirdiş, Sultan; Colson, Dorothée
Journal of Physics: Conference Series, Vol. 449
DOI: 10.1088/1742-6596/449/1/012023

Effects of transition-metal substitution in the iron-based superconductor LaFeAsO: Momentum- and real-space analysis from first principles
journal, April 2012

Konbu, Shun; Nakamura, Kazuma; Ikeda, Hiroaki
Solid State Communications, Vol. 152, Issue 8
DOI: 10.1016/j.ssc.2011.12.048

Effect of electron irradiation on the structure and properties of the MgB2 superconductor
journal, November 2006

Blinkin, A. A.; Derevyanko, V. V.; Dovbnya, A. N.
Physics of the Solid State, Vol. 48, Issue 11
DOI: 10.1134/S1063783406110011

Intraband vs. interband scattering rate effects in neutron irradiated MgB ₂
journal, February 2007

Putti, M.; Brotto, P.; Monni, M.
Europhysics Letters (EPL), Vol. 77, Issue 5
DOI: 10.1209/0295-5075/77/57005

Doping- and irradiation-controlled pinning of vortices in BaFe $_{2}$ (As $_{1 - x}$ P $_{x}$ ) $_{2}$ single crystals
journal, October 2011

Fang, L.; Jia, Y.; Schlueter, J. A.
Physical Review B, Vol. 84, Issue 14
DOI: 10.1103/PhysRevB.84.140504

Effect of realistic finite-size impurities on $T_{c}$ in Fe-based superconductors based on the five-orbital tight-binding model
journal, May 2013

Yamakawa, Youichi; Onari, Seiichiro; Kontani, Hiroshi
Physical Review B, Vol. 87, Issue 19
DOI: 10.1103/PhysRevB.87.195121

Contrasting impurity scattering and pair-breaking effects by doping Mn and Zn in ${Ba}_{0.5} K_{0.5} {Fe}_{2} {As}_{2}$
journal, May 2010

Cheng, Peng; Shen, Bing; Hu, Jiangping
Physical Review B, Vol. 81, Issue 17
DOI: 10.1103/PhysRevB.81.174529

Evolution of the Fermi Surface of ${BaFe}_{2} ({As}_{1 - x} P_{x})_{2}$ on Entering the Superconducting Dome
journal, February 2010

Shishido, H.; Bangura, A. F.; Coldea, A. I.
Physical Review Letters, Vol. 104, Issue 5
DOI: 10.1103/PhysRevLett.104.057008

Magneto-optical study of $Ba {({Fe}_{1 - x} M_{x})}_{2} {As}_{2}$ ( $M = Co$ and Ni) single crystals irradiated with heavy ions
journal, March 2010

Prozorov, R.; Tanatar, M. A.; Roy, B.
Physical Review B, Vol. 81, Issue 9
DOI: 10.1103/PhysRevB.81.094509

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

Power-law dependence of the $ab$ -plane penetration depth in ${Nd}_{1.85} {Ce}_{0.15} Cu O_{4 - y}$
journal, August 1996

Cooper, J. R.
Physical Review B, Vol. 54, Issue 6
DOI: 10.1103/PhysRevB.54.R3753

Gap symmetry and structure of Fe-based superconductors
journal, October 2011

Hirschfeld, P. J.; Korshunov, M. M.; Mazin, I. I.
Reports on Progress in Physics, Vol. 74, Issue 12
DOI: 10.1088/0034-4885/74/12/124508

London penetration depth in $Ba {({Fe}_{1 - x} T_{x})}_{2} {As}_{2}$ $(T = Co, Ni)$ superconductors irradiated with heavy ions
journal, August 2010

Kim, H.; Gordon, R. T.; Tanatar, M. A.
Physical Review B, Vol. 82, Issue 6
DOI: 10.1103/PhysRevB.82.060518

Superconductivity with Pairs in a Relative $p$ Wave
journal, August 1963

Balian, R.; Werthamer, N. R.
Physical Review, Vol. 131, Issue 4
DOI: 10.1103/PhysRev.131.1553

Impurity Effects in Sign-Reversing Fully Gapped Superconductors: Analysis of FeAs Superconductors
journal, November 2008

Senga, Yuko; Kontani, Hiroshi
Journal of the Physical Society of Japan, Vol. 77, Issue 11
DOI: 10.1143/JPSJ.77.113710

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Title: Effect of Electron Irradiation on Superconductivity in Single Crystals of Ba ( Fe 1 − x Ru x ) 2 As 2 ( x = 0.24 )

Abstract

Citation Formats

A Sharp Peak of the Zero-Temperature Penetration Depth at Optimal Composition in BaFe2(As1-xPx)2 journal, June 2012

Disorder-induced transition between s ± and s + + states in two-band superconductors journal, November 2011

Nonmagnetic impurity effects and neutron scattering spectrum in iron pnictides journal, November 2010

Effects of Ru substitution on electron correlations and Fermi-surface dimensionality in Ba(Fe 1 − x Ru x ) 2 As 2 journal, August 2012

Systematic study of the superconducting and normal-state properties of neutron-irradiated MgB 2 journal, April 2006

Effects of Disordered Ru Substitution in BaFe 2 As 2 : Possible Realization of Superdiffusion in Real Materials journal, January 2013

Theory of dirty superconductors journal, September 1959

Field-dependent transport critical current in single crystals of Ba(Fe 1 − x TM x ) 2 As 2 (TM = Co, Ni) superconductors journal, April 2010

Pair breaking in iron pnictides journal, December 2009

Radiation effects on MgB 2 : a review and a comparison with A15 superconductors journal, February 2008

Enhancement of T c by disorder in underdoped iron pnictide superconductors journal, April 2012

Effect of heavy-ion irradiation on London penetration depth in overdoped Ba(Fe 1 − x Co x ) 2 As 2 journal, August 2013

Physical and magnetic properties of Ba ( Fe 1 − x Ru x ) 2 As 2 single crystals journal, July 2010

First-principles calculation of transition-metal impurities in LaFeAsO journal, April 2011

Critical temperature of an anisotropic superconductor containing both nonmagnetic and magnetic impurities journal, October 1998

Enhancement of critical current density in Co-doped BaFe 2 As 2 with columnar defects introduced by heavy-ion irradiation journal, July 2009

What Controls the Phase Diagram and Superconductivity in Ru-Substituted BaFe 2 As 2 ? journal, December 2011

Pair-breaking effects induced by 3-MeV proton irradiation in Ba 1 − x K x Fe 2 As 2 journal, December 2013

Violation of Anderson’s Theorem for the Sign-Reversing s -Wave State of Iron-Pnictide Superconductors journal, October 2009

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Using controlled disorder to distinguish s ± and s + + gap structure in Fe-based superconductors journal, March 2013

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Intraband vs. interband scattering rate effects in neutron irradiated MgB 2 journal, February 2007

Doping- and irradiation-controlled pinning of vortices in BaFe 2 (As 1 − x P x ) 2 single crystals journal, October 2011

Effect of realistic finite-size impurities on T c in Fe-based superconductors based on the five-orbital tight-binding model journal, May 2013

Contrasting impurity scattering and pair-breaking effects by doping Mn and Zn in Ba 0.5 K 0.5 Fe 2 As 2 journal, May 2010

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Title: Effect of Electron Irradiation on Superconductivity in Single Crystals of $Ba ({Fe}_{1 - x} {Ru}_{x})_{2} {As}_{2}$ ( $x = 0.24$ )

A Sharp Peak of the Zero-Temperature Penetration Depth at Optimal Composition in BaFe2(As1-xPx)2
journal, June 2012

Disorder-induced transition between $s_{\pm}$ and $s_{+ +}$ states in two-band superconductors
journal, November 2011

Nonmagnetic impurity effects and neutron scattering spectrum in iron pnictides
journal, November 2010

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journal, August 2012

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journal, April 2006

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journal, January 2013

Theory of dirty superconductors
journal, September 1959

Field-dependent transport critical current in single crystals of Ba(Fe _{1 − x} TM _x ) ₂ As ₂ (TM = Co, Ni) superconductors
journal, April 2010

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Radiation effects on MgB ₂ : a review and a comparison with A15 superconductors
journal, February 2008

Enhancement of $T_{c}$ by disorder in underdoped iron pnictide superconductors
journal, April 2012

Effect of heavy-ion irradiation on London penetration depth in overdoped Ba(Fe $_{1 - x}$ Co $_{x}$ ) $_{2}$ As $_{2}$
journal, August 2013

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

First-principles calculation of transition-metal impurities in LaFeAsO
journal, April 2011

Critical temperature of an anisotropic superconductor containing both nonmagnetic and magnetic impurities
journal, October 1998

Enhancement of critical current density in Co-doped ${BaFe}_{2} {As}_{2}$ with columnar defects introduced by heavy-ion irradiation
journal, July 2009

What Controls the Phase Diagram and Superconductivity in Ru-Substituted ${BaFe}_{2} {As}_{2}$ ?
journal, December 2011

Pair-breaking effects induced by 3-MeV proton irradiation in Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$
journal, December 2013

Violation of Anderson’s Theorem for the Sign-Reversing $s$ -Wave State of Iron-Pnictide Superconductors
journal, October 2009

First-Order Transition in the Magnetic Vortex Matter in Superconducting ${MgB}_{2}$ Tuned by Disorder
journal, July 2010

Suppression of the Critical Temperature of Superconducting NdFeAs(OF) Single Crystals by Kondo-Like Defect Sites Induced by $α$ -Particle Irradiation
journal, February 2010

Superconductivity suppression of Ba $_{0.5}$ K $_{0.5}$ Fe $_{2 - 2 x} M_{2 x}$ As $_{2}$ single crystals by substitution of transition metal ( $M$ = Mn, Ru, Co, Ni, Cu, and Zn)
journal, June 2012

Linear decrease of critical temperature with increasing Zn substitution in the iron-based superconductor BaFe $_{1.89 - 2 x}$ Zn $_{2 x}$ Co $_{0.11}$ As $_{2}$
journal, July 2011

Effect of magnetic and nonmagnetic impurities on highly anisotropic superconductivity
journal, June 1997

Suppression of the critical temperature of superconducting $Ba {({Fe}_{1 - x} {Co}_{x})}_{2} {As}_{2}$ by point defects from proton irradiation
journal, December 2010

Using controlled disorder to distinguish $s_{\pm}$ and $s_{+}_{+}$ gap structure in Fe-based superconductors
journal, March 2013

London penetration depth and strong pair breaking in iron-based superconductors
journal, May 2010

Electron irradiation of Co, Ni, and P-doped BaFe ₂ As ₂ –type iron-based superconductors
journal, July 2013

Effects of transition-metal substitution in the iron-based superconductor LaFeAsO: Momentum- and real-space analysis from first principles
journal, April 2012

Effect of electron irradiation on the structure and properties of the MgB2 superconductor
journal, November 2006

Intraband vs. interband scattering rate effects in neutron irradiated MgB ₂
journal, February 2007

Doping- and irradiation-controlled pinning of vortices in BaFe $_{2}$ (As $_{1 - x}$ P $_{x}$ ) $_{2}$ single crystals
journal, October 2011

Effect of realistic finite-size impurities on $T_{c}$ in Fe-based superconductors based on the five-orbital tight-binding model
journal, May 2013

Contrasting impurity scattering and pair-breaking effects by doping Mn and Zn in ${Ba}_{0.5} K_{0.5} {Fe}_{2} {As}_{2}$
journal, May 2010

Evolution of the Fermi Surface of ${BaFe}_{2} ({As}_{1 - x} P_{x})_{2}$ on Entering the Superconducting Dome
journal, February 2010

Magneto-optical study of $Ba {({Fe}_{1 - x} M_{x})}_{2} {As}_{2}$ ( $M = Co$ and Ni) single crystals irradiated with heavy ions
journal, March 2010

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

Power-law dependence of the $ab$ -plane penetration depth in ${Nd}_{1.85} {Ce}_{0.15} Cu O_{4 - y}$
journal, August 1996

Gap symmetry and structure of Fe-based superconductors
journal, October 2011

London penetration depth in $Ba {({Fe}_{1 - x} T_{x})}_{2} {As}_{2}$ $(T = Co, Ni)$ superconductors irradiated with heavy ions
journal, August 2010

Superconductivity with Pairs in a Relative $p$ Wave
journal, August 1963

Impurity Effects in Sign-Reversing Fully Gapped Superconductors: Analysis of FeAs Superconductors
journal, November 2008