NMR Study of the New Magnetic Superconductor CaK(Fe0:951Ni0:049)4As4: Microscopic Coexistence of Hedgehog Spin-vortex Crystal and Superconductivity

Ding, Q. P.; Meier, W. R.; Bohmer, A. E.; Bud'ko, S. L.; Canfield, Paul C.; Furukawa, Yuji

doi:10.1103/PhysRevB.96.220510

Title: NMR Study of the New Magnetic Superconductor CaK(Fe_0:951Ni0:049)₄As₄: Microscopic Coexistence of Hedgehog Spin-vortex Crystal and Superconductivity

Abstract

Coexistence of a new-type antiferromagnetic (AFM) state, the so-called hedgehog spin-vortex crystal (SVC), and superconductivity (SC) is evidenced by ⁷⁵As nuclear magnetic resonance study on single-crystalline CaK(Fe_0:951Ni0:049)₄As₄. The hedgehog SVC order is clearly demonstrated by the direct observation of the internal magnetic induction along the c axis at the As1 site (close to K) and a zero net internal magnetic induction at the As2 site (close to Ca) below an AFM ordering temperature T_N ~ 52 K. The nuclear spin-lattice relaxation rate 1/T₁ shows a distinct decrease below T_c ~ 10 K, providing also unambiguous evidence for the microscopic coexistence. Furthermore, based on the analysis of the 1/T₁ data, the hedgehog SVC-type spin correlations are found to be enhanced below T ~ 150 K in the paramagnetic state. Furthermore, these results indicate the hedgehog SVC-type spin correlations play an important role for the appearance of SC in the new magnetic superconductor.

Authors:

Ding, Q. P. ^[1]; Meier, W. R. ^[1]; Bohmer, A. E. ^[1]; Bud'ko, S. L. ^[1]; Canfield, Paul C. ^[1]; Furukawa, Yuji ^[1]

Ames Lab. and Iowa State Univ., Ames, IA (United States)

Publication Date:: Fri Dec 29 00:00:00 EST 2017

Research Org.:: Ames Lab., Ames, IA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1415856

Alternate Identifier(s):: OSTI ID: 1416432

Report Number(s):: IS-J-9543
Journal ID: ISSN 2469-9950

Grant/Contract Number:: AC02-07CH11358

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review B

Additional Journal Information:: Journal Volume: 96; Journal Issue: 22; 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

Citation Formats


                    Ding, Q. P., Meier, W. R., Bohmer, A. E., Bud'ko, S. L., Canfield, Paul C., and Furukawa, Yuji. NMR Study of the New Magnetic Superconductor CaK(Fe0:951Ni0:049)4As4: Microscopic Coexistence of Hedgehog Spin-vortex Crystal and Superconductivity.  United States: N. p., 2017. 
Web.  doi:10.1103/PhysRevB.96.220510.

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                    Ding, Q. P., Meier, W. R., Bohmer, A. E., Bud'ko, S. L., Canfield, Paul C., & Furukawa, Yuji. NMR Study of the New Magnetic Superconductor CaK(Fe0:951Ni0:049)4As4: Microscopic Coexistence of Hedgehog Spin-vortex Crystal and Superconductivity.  United States.  https://doi.org/10.1103/PhysRevB.96.220510

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                    Ding, Q. P., Meier, W. R., Bohmer, A. E., Bud'ko, S. L., Canfield, Paul C., and Furukawa, Yuji. Fri .  
"NMR Study of the New Magnetic Superconductor CaK(Fe0:951Ni0:049)4As4: Microscopic Coexistence of Hedgehog Spin-vortex Crystal and Superconductivity".  United States.  https://doi.org/10.1103/PhysRevB.96.220510.  https://www.osti.gov/servlets/purl/1415856.

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@article{osti_1415856,

  title        = {NMR Study of the New Magnetic Superconductor CaK(Fe0:951Ni0:049)4As4: Microscopic Coexistence of Hedgehog Spin-vortex Crystal and Superconductivity},

  author       = {Ding, Q. P. and Meier, W. R. and Bohmer, A. E. and Bud'ko, S. L. and Canfield, Paul C. and Furukawa, Yuji},

  abstractNote = {Coexistence of a new-type antiferromagnetic (AFM) state, the so-called hedgehog spin-vortex crystal (SVC), and superconductivity (SC) is evidenced by 75As nuclear magnetic resonance study on single-crystalline CaK(Fe0:951Ni0:049)4As4. The hedgehog SVC order is clearly demonstrated by the direct observation of the internal magnetic induction along the c axis at the As1 site (close to K) and a zero net internal magnetic induction at the As2 site (close to Ca) below an AFM ordering temperature TN ~ 52 K. The nuclear spin-lattice relaxation rate 1/T1 shows a distinct decrease below Tc ~ 10 K, providing also unambiguous evidence for the microscopic coexistence. Furthermore, based on the analysis of the 1/T1 data, the hedgehog SVC-type spin correlations are found to be enhanced below T ~ 150 K in the paramagnetic state. Furthermore, these results indicate the hedgehog SVC-type spin correlations play an important role for the appearance of SC in the new magnetic superconductor.},

  doi          = {10.1103/PhysRevB.96.220510},

  journal      = {Physical Review B},

  number       = 22,

  volume       = 96,

  place        = {United States},

  year         = {Fri Dec 29 00:00:00 EST 2017},

  month        = {Fri Dec 29 00:00:00 EST 2017}

}

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https://doi.org/10.1103/PhysRevB.96.220510

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Cited by: 14 works

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Figures / Tables:

Figure-1: Phase diagram of CaK(Fe_1−xNi_x)₄As₄. T_N and T_c determined from resistivity and magnetization are from Ref. 25. The inset shows the crystal structure of CaKFe₄As₄ where the two crystallographically inequivalent As sites exist: As1 and As2 sites close to the K and Ca layers, respectively.

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Works referenced in this record:

Nodeless multiband superconductivity in stoichiometric single-crystalline ${CaKFe}_{4} {As}_{4}$
journal, March 2017

Cho, Kyuil; Fente, A.; Teknowijoyo, S.
Physical Review B, Vol. 95, Issue 10
DOI: 10.1103/PhysRevB.95.100502

Tetragonal magnetic phase in ${Ba}_{1 - x} K_{x} {Fe}_{2} {As}_{2}$ from x-ray and neutron diffraction
journal, September 2015

Allred, J. M.; Avci, S.; Chung, D. Y.
Physical Review B, Vol. 92, Issue 9
DOI: 10.1103/PhysRevB.92.094515

Anisotropic thermodynamic and transport properties of single-crystalline ${CaKFe}_{4} {As}_{4}$
journal, August 2016

Meier, W. R.; Kong, T.; Kaluarachchi, U. S.
Physical Review B, Vol. 94, Issue 6
DOI: 10.1103/PhysRevB.94.064501

Suppression of electron correlations in the collapsed tetragonal phase of $Ca {Fe}_{2} {As}_{2}$ under ambient pressure demonstrated by ${}^{75}{As}$ NMR/NQR measurements
journal, March 2014

Furukawa, Y.; Roy, B.; Ran, S.
Physical Review B, Vol. 89, Issue 12
DOI: 10.1103/PhysRevB.89.121109

Crystallographic, electronic, thermal, and magnetic properties of single-crystal SrCo $_{2}$ As $_{2}$
journal, July 2013

Pandey, Abhishek; Quirinale, D. G.; Jayasekara, W.
Physical Review B, Vol. 88, Issue 1
DOI: 10.1103/PhysRevB.88.014526

Expansion of the tetragonal magnetic phase with pressure in the iron arsenide superconductor ${Ba}_{1 - x} K_{x} {Fe}_{2} {As}_{2}$
journal, April 2016

Hassinger, E.; Gredat, G.; Valade, F.
Physical Review B, Vol. 93, Issue 14
DOI: 10.1103/PhysRevB.93.144401

Superconductivity-induced re-entrance of the orthorhombic distortion in Ba1−xKxFe2As2
journal, July 2015

Böhmer, A. E.; Hardy, F.; Wang, L.
Nature Communications, Vol. 6, Issue 1
DOI: 10.1038/ncomms8911

Double-Q spin-density wave in iron arsenide superconductors
journal, January 2016

Allred, J. M.; Taddei, K. M.; Bugaris, D. E.
Nature Physics, Vol. 12, Issue 5
DOI: 10.1038/nphys3629

Pressure-induced Fermi-surface reconstruction in the iron-arsenide superconductor Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$ : Evidence of a phase transition inside the antiferromagnetic phase
journal, October 2012

Hassinger, E.; Gredat, G.; Valade, F.
Physical Review B, Vol. 86, Issue 14
DOI: 10.1103/PhysRevB.86.140502

Volovik effect and Fermi-liquid behavior in the $s$ -wave superconductor ${CaPd}_{2} {As}_{2} : {}^{75}{As}$ NMR-NQR measurements
journal, April 2016

Ding, Q. -P.; Wiecki, P.; Anand, V. K.
Physical Review B, Vol. 93, Issue 14
DOI: 10.1103/PhysRevB.93.140502

Magnetically driven suppression of nematic order in an iron-based superconductor
journal, May 2014

Avci, S.; Chmaissem, O.; Allred, J. M.
Nature Communications, Vol. 5, Issue 1
DOI: 10.1038/ncomms4845

New-Structure-Type Fe-Based Superconductors: Ca A Fe ₄ As ₄ ( A = K, Rb, Cs) and Sr A Fe ₄ As ₄ ( A = Rb, Cs)
journal, March 2016

Iyo, Akira; Kawashima, Kenji; Kinjo, Tatsuya
Journal of the American Chemical Society, Vol. 138, Issue 10
DOI: 10.1021/jacs.5b12571

Signature of multigap nodeless superconductivity in ${CaKFe}_{4} {As}_{4}$
journal, April 2017

Biswas, P. K.; Iyo, A.; Yoshida, Y.
Physical Review B, Vol. 95, Issue 14
DOI: 10.1103/PhysRevB.95.140505

Coexistence of Competing Antiferromagnetic and Superconducting Phases in the Underdoped $Ba ({Fe}_{0.953} {Co}_{0.047})_{2} {As}_{2}$ Compound Using X-ray and Neutron Scattering Techniques
journal, August 2009

Pratt, D. K.; Tian, W.; Kreyssig, A.
Physical Review Letters, Vol. 103, Issue 8
DOI: 10.1103/PhysRevLett.103.087001

Antiferromagnetism of SrFe ₂ As ₂ Studied by Single-Crystal ⁷⁵ As-NMR
journal, June 2009

Kitagawa, Kentaro; Katayama, Naoyuki; Ohgushi, Kenya
Journal of the Physical Society of Japan, Vol. 78, Issue 6
DOI: 10.1143/JPSJ.78.063706

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

Complex phase diagram of ${Ba}_{1 - x} {Na}_{x} {Fe}_{2} {As}_{2}$ : A multitude of phases striving for the electronic entropy
journal, January 2016

Wang, L.; Hardy, F.; Böhmer, A. E.
Physical Review B, Vol. 93, Issue 1
DOI: 10.1103/PhysRevB.93.014514

Potential Antiferromagnetic Fluctuations in Hole-Doped Iron-Pnictide Superconductor Ba _{1- x} K _x Fe ₂ As ₂ Studied by ⁷⁵ As Nuclear Magnetic Resonance Measurement
journal, May 2012

Hirano, Masanori; Yamada, Yuji; Saito, Taku
Journal of the Physical Society of Japan, Vol. 81, Issue 5
DOI: 10.1143/JPSJ.81.054704

Microscopic coexistence of antiferromagnetic order and superconductivity in Ba $_{0.77}$ K $_{0.23}$ Fe $_{2}$ As $_{2}$
journal, November 2012

Li, Z.; Zhou, R.; Liu, Y.
Physical Review B, Vol. 86, Issue 18
DOI: 10.1103/PhysRevB.86.180501

Stripe antiferromagnetic correlations in ${LaFeAsO}_{1 - x} F_{x}$ probed by ${}^{75}A s$ NMR
journal, June 2010

Kitagawa, Shunsaku; Nakai, Yusuke; Iye, Tetsuya
Physical Review B, Vol. 81, Issue 21
DOI: 10.1103/PhysRevB.81.212502

Atomic coexistence of superconductivity and incommensurate magnetic order in the pnictide $Ba {({Fe}_{1 - x} {Co}_{x})}_{2} {As}_{2}$
journal, October 2009

Laplace, Y.; Bobroff, J.; Rullier-Albenque, F.
Physical Review B, Vol. 80, Issue 14
DOI: 10.1103/PhysRevB.80.140501

Magnetic fluctuations and superconducting properties of ${CaKFe}_{4} {As}_{4}$ studied by ${}^{75}{As}$ NMR
journal, September 2017

Cui, J.; Ding, Q. -P.; Meier, W. R.
Physical Review B, Vol. 96, Issue 10
DOI: 10.1103/PhysRevB.96.104512

Vestigial chiral and charge orders from bidirectional spin-density waves: Application to the iron-based superconductors
journal, January 2016

Fernandes, R. M.; Kivelson, S. A.; Berg, E.
Physical Review B, Vol. 93, Issue 1
DOI: 10.1103/PhysRevB.93.014511

Antiferromagnetic spin correlations and pseudogaplike behavior in $Ca {({Fe}_{1 - x} {Co}_{x})}_{2} {As}_{2}$ studied by ${}^{75}{As}$ nuclear magnetic resonance and anisotropic resistivity
journal, November 2015

Cui, J.; Roy, B.; Tanatar, M. A.
Physical Review B, Vol. 92, Issue 18
DOI: 10.1103/PhysRevB.92.184504

Disorder-promoted $C_{4}$ -symmetric magnetic order in iron-based superconductors
journal, April 2016

Hoyer, Mareike; Fernandes, Rafael M.; Levchenko, Alex
Physical Review B, Vol. 93, Issue 14
DOI: 10.1103/PhysRevB.93.144414

Optimization of the crystal growth of the superconductor ${CaKFe}_{4} {As}_{4}$ from solution in the $FeAs − {CaFe}_{2} {As}_{2} − {KFe}_{2} {As}_{2}$ system
journal, June 2017

Meier, W. R.; Kong, T.; Bud'ko, S. L.
Physical Review Materials, Vol. 1, Issue 1
DOI: 10.1103/PhysRevMaterials.1.013401

Superconductivity in iron compounds
journal, December 2011

Stewart, G. R.
Reviews of Modern Physics, Vol. 83, Issue 4
DOI: 10.1103/RevModPhys.83.1589

Microscopic Evidence of Direct Coupling between Magnetic and Superconducting Order Parameters in BaFe ₂ (As _{1- x} P _x ) ₂
journal, March 2012

Iye, Tetsuya; Nakai, Yusuke; Kitagawa, Shunsaku
Journal of the Physical Society of Japan, Vol. 81, Issue 3
DOI: 10.1143/JPSJ.81.033701

Microscopic Coexistence of Superconductivity and Magnetism in ${Ba}_{1 - x} K_{x} {Fe}_{2} {As}_{2}$
journal, November 2011

Wiesenmayer, Erwin; Luetkens, Hubertus; Pascua, Gwendolyne
Physical Review Letters, Vol. 107, Issue 23
DOI: 10.1103/PhysRevLett.107.237001

Electronic properties, low-energy Hamiltonian, and superconducting instabilities in ${CaKFe}_{4} {As}_{4}$
journal, September 2017

Lochner, Felix; Ahn, Felix; Hickel, Tilmann
Physical Review B, Vol. 96, Issue 9
DOI: 10.1103/PhysRevB.96.094521

Distinct High- $T$ Transitions in Underdoped ${Ba}_{1 - x} K_{x} {Fe}_{2} {As}_{2}$
journal, August 2010

Urbano, R. R.; Green, E. L.; Moulton, W. G.
Physical Review Letters, Vol. 105, Issue 10
DOI: 10.1103/PhysRevLett.105.107001

Stabilizing the spin vortex crystal phase in two-dimensional iron-based superconductors
journal, February 2017

O'Halloran, Joseph; Agterberg, D. F.; Chen, M. X.
Physical Review B, Vol. 95, Issue 7
DOI: 10.1103/PhysRevB.95.075104

Magnetoelastic coupling in the phase diagram of Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$ as seen via neutron diffraction
journal, May 2011

Avci, S.; Chmaissem, O.; Goremychkin, E. A.
Physical Review B, Vol. 83, Issue 17
DOI: 10.1103/PhysRevB.83.172503

Enhancement of the Superconducting Gap by Nesting in ${CaKFe}_{4} {As}_{4}$ : A New High Temperature Superconductor
journal, December 2016

Mou, Daixiang; Kong, Tai; Meier, William R.
Physical Review Letters, Vol. 117, Issue 27
DOI: 10.1103/PhysRevLett.117.277001

Antiferromagnetic ordering in the absence of structural distortion in $Ba {({Fe}_{1 - x} {Mn}_{x})}_{2} {As}_{2}$
journal, December 2010

Kim, M. G.; Kreyssig, A.; Thaler, A.
Physical Review B, Vol. 82, Issue 22
DOI: 10.1103/PhysRevB.82.220503

Microscopic Coexistence of Superconductivity and Antiferromagnetism in Underdoped $Ba ({Fe}_{1 - x} {Ru}_{x})_{2} {As}_{2}$
journal, November 2012

Ma, Long; Ji, G. F.; Dai, Jia
Physical Review Letters, Vol. 109, Issue 19
DOI: 10.1103/PhysRevLett.109.197002

Spin Resonance in the New-Structure-Type Iron-Based Superconductor CaKFe ₄ As ₄
journal, September 2017

Iida, Kazuki; Ishikado, Motoyuki; Nagai, Yuki
Journal of the Physical Society of Japan, Vol. 86, Issue 9
DOI: 10.7566/JPSJ.86.093703

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

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

Superconductivity in Iron Compounds
text, January 2011

Stewart, G. R.
arXiv
DOI: 10.48550/arxiv.1106.1618

Microscopic Evidence of Direct Coupling between Magnetic and Superconducting Order Parameters in BaFe$_2$(As$_{1-x}$P$_x$)$_2$
text, January 2011

Iye, T.; Nakai, Y.; Kitagawa, S.
arXiv
DOI: 10.48550/arxiv.1111.7075

Microscopic coexistence of antiferromagnetic order and superconductivity in Ba$_{0.77}$K$_{0.23}$Fe$_{2}$As$_{2}$
text, January 2012

Li, Z.; Zhou, R.; Sun, D. L.
arXiv
DOI: 10.48550/arxiv.1204.2434

Magnetically-Driven Suppression of Nematic Order in an Iron-Based Superconductor
text, January 2013

Avci, Sevda; Chmaissem, Omar; Rosenkranz, Stephan
arXiv
DOI: 10.48550/arxiv.1303.2647

Vestigial chiral and charge orders from bidirectional spin-density waves: Application to the iron-based superconductors
text, January 2015

Fernandes, R. M.; Kivelson, S. A.; Berg, E.
arXiv
DOI: 10.48550/arxiv.1504.03656

Double-Q spin-density wave in iron arsenide superconductors
text, January 2015

Allred, J. M.; Taddei, K. M.; Bugaris, D. E.
arXiv
DOI: 10.48550/arxiv.1505.06175

Complex phase diagram of Ba$_{1-x}$Na$_{x}$Fe$_{2}$As$_{2}$: a multitude of phases striving for the electronic entropy
text, January 2015

Wang, Liran; Hardy, F.; Böhmer, A.
arXiv
DOI: 10.48550/arxiv.1510.03685

Spin Resonance in the New-Structure-Type Iron-Based Superconductor CaKFe4As4
text, January 2017

Iida, K.; Ishikado, M.; Nagai, Y.
arXiv
DOI: 10.48550/arxiv.1708.01006

Works referencing / citing this record:

Effect of pressure on the self-hole-doped superconductor RbGd ₂ Fe ₄ As ₄ O ₂
journal, December 2018

Sun, J. P.; Wang, Z-C; Liu, Z. Y.
Journal of Physics: Condensed Matter, Vol. 31, Issue 4
DOI: 10.1088/1361-648x/aaf0b9

Odd and Even Modes of Neutron Spin Resonance in the Bilayer Iron-Based Superconductor ${CaKFe}_{4} {As}_{4}$
journal, June 2018

Xie, Tao; Wei, Yuan; Gong, Dongliang
Physical Review Letters, Vol. 120, Issue 26
DOI: 10.1103/physrevlett.120.267003

Preferred Magnetic Excitations in the Iron-Based ${Sr}_{1 - x} {Na}_{x} {Fe}_{2} {As}_{2}$ Superconductor
journal, January 2019

Guo, Jianqing; Yue, Li; Iida, Kazuki
Physical Review Letters, Vol. 122, Issue 1
DOI: 10.1103/physrevlett.122.017001

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Title: NMR Study of the New Magnetic Superconductor CaK(Fe0:951Ni0:049)4As4: Microscopic Coexistence of Hedgehog Spin-vortex Crystal and Superconductivity

Abstract

Citation Formats

Figures / Tables:

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Atomic coexistence of superconductivity and incommensurate magnetic order in the pnictide Ba ( Fe 1 − x Co x ) 2 As 2 journal, October 2009

Magnetic fluctuations and superconducting properties of CaKFe 4 As 4 studied by As 75 NMR journal, September 2017

Vestigial chiral and charge orders from bidirectional spin-density waves: Application to the iron-based superconductors journal, January 2016

Antiferromagnetic spin correlations and pseudogaplike behavior in Ca ( Fe 1 − x Co x ) 2 As 2 studied by As 75 nuclear magnetic resonance and anisotropic resistivity journal, November 2015

Disorder-promoted C 4 -symmetric magnetic order in iron-based superconductors journal, April 2016

Optimization of the crystal growth of the superconductor CaKFe 4 As 4 from solution in the FeAs − CaFe 2 As 2 − KFe 2 As 2 system journal, June 2017

Superconductivity in iron compounds journal, December 2011

Microscopic Evidence of Direct Coupling between Magnetic and Superconducting Order Parameters in BaFe 2 (As 1- x P x ) 2 journal, March 2012

Microscopic Coexistence of Superconductivity and Magnetism in Ba 1 − x K x Fe 2 As 2 journal, November 2011

Electronic properties, low-energy Hamiltonian, and superconducting instabilities in CaKFe 4 As 4 journal, September 2017

Distinct High- T Transitions in Underdoped Ba 1 − x K x Fe 2 As 2 journal, August 2010

Stabilizing the spin vortex crystal phase in two-dimensional iron-based superconductors journal, February 2017

Magnetoelastic coupling in the phase diagram of Ba 1 − x K x Fe 2 As 2 as seen via neutron diffraction journal, May 2011

Enhancement of the Superconducting Gap by Nesting in CaKFe 4 As 4 : A New High Temperature Superconductor journal, December 2016

Antiferromagnetic ordering in the absence of structural distortion in Ba ( Fe 1 − x Mn x ) 2 As 2 journal, December 2010

Microscopic Coexistence of Superconductivity and Antiferromagnetism in Underdoped Ba ( Fe 1 − x Ru x ) 2 As 2 journal, November 2012

Spin Resonance in the New-Structure-Type Iron-Based Superconductor CaKFe 4 As 4 journal, September 2017

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

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

Superconductivity in Iron Compounds text, January 2011

Microscopic Evidence of Direct Coupling between Magnetic and Superconducting Order Parameters in BaFe$_2$(As$_{1-x}$P$_x$)$_2$ text, January 2011

Microscopic coexistence of antiferromagnetic order and superconductivity in Ba$_{0.77}$K$_{0.23}$Fe$_{2}$As$_{2}$ text, January 2012

Magnetically-Driven Suppression of Nematic Order in an Iron-Based Superconductor text, January 2013

Vestigial chiral and charge orders from bidirectional spin-density waves: Application to the iron-based superconductors text, January 2015

Double-Q spin-density wave in iron arsenide superconductors text, January 2015

Complex phase diagram of Ba$_{1-x}$Na$_{x}$Fe$_{2}$As$_{2}$: a multitude of phases striving for the electronic entropy text, January 2015

Spin Resonance in the New-Structure-Type Iron-Based Superconductor CaKFe4As4 text, January 2017

Effect of pressure on the self-hole-doped superconductor RbGd 2 Fe 4 As 4 O 2 journal, December 2018

Odd and Even Modes of Neutron Spin Resonance in the Bilayer Iron-Based Superconductor CaKFe 4 As 4 journal, June 2018

Preferred Magnetic Excitations in the Iron-Based Sr 1 − x Na x Fe 2 As 2 Superconductor journal, January 2019

Title: NMR Study of the New Magnetic Superconductor CaK(Fe_0:951Ni0:049)₄As₄: Microscopic Coexistence of Hedgehog Spin-vortex Crystal and Superconductivity

Nodeless multiband superconductivity in stoichiometric single-crystalline ${CaKFe}_{4} {As}_{4}$
journal, March 2017

Tetragonal magnetic phase in ${Ba}_{1 - x} K_{x} {Fe}_{2} {As}_{2}$ from x-ray and neutron diffraction
journal, September 2015

Anisotropic thermodynamic and transport properties of single-crystalline ${CaKFe}_{4} {As}_{4}$
journal, August 2016

Suppression of electron correlations in the collapsed tetragonal phase of $Ca {Fe}_{2} {As}_{2}$ under ambient pressure demonstrated by ${}^{75}{As}$ NMR/NQR measurements
journal, March 2014

Crystallographic, electronic, thermal, and magnetic properties of single-crystal SrCo $_{2}$ As $_{2}$
journal, July 2013

Expansion of the tetragonal magnetic phase with pressure in the iron arsenide superconductor ${Ba}_{1 - x} K_{x} {Fe}_{2} {As}_{2}$
journal, April 2016

Superconductivity-induced re-entrance of the orthorhombic distortion in Ba1−xKxFe2As2
journal, July 2015

Double-Q spin-density wave in iron arsenide superconductors
journal, January 2016

Pressure-induced Fermi-surface reconstruction in the iron-arsenide superconductor Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$ : Evidence of a phase transition inside the antiferromagnetic phase
journal, October 2012

Volovik effect and Fermi-liquid behavior in the $s$ -wave superconductor ${CaPd}_{2} {As}_{2} : {}^{75}{As}$ NMR-NQR measurements
journal, April 2016

Magnetically driven suppression of nematic order in an iron-based superconductor
journal, May 2014

New-Structure-Type Fe-Based Superconductors: Ca A Fe ₄ As ₄ ( A = K, Rb, Cs) and Sr A Fe ₄ As ₄ ( A = Rb, Cs)
journal, March 2016

Signature of multigap nodeless superconductivity in ${CaKFe}_{4} {As}_{4}$
journal, April 2017

Coexistence of Competing Antiferromagnetic and Superconducting Phases in the Underdoped $Ba ({Fe}_{0.953} {Co}_{0.047})_{2} {As}_{2}$ Compound Using X-ray and Neutron Scattering Techniques
journal, August 2009

Antiferromagnetism of SrFe ₂ As ₂ Studied by Single-Crystal ⁷⁵ As-NMR
journal, June 2009

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

Complex phase diagram of ${Ba}_{1 - x} {Na}_{x} {Fe}_{2} {As}_{2}$ : A multitude of phases striving for the electronic entropy
journal, January 2016

Potential Antiferromagnetic Fluctuations in Hole-Doped Iron-Pnictide Superconductor Ba _{1- x} K _x Fe ₂ As ₂ Studied by ⁷⁵ As Nuclear Magnetic Resonance Measurement
journal, May 2012

Microscopic coexistence of antiferromagnetic order and superconductivity in Ba $_{0.77}$ K $_{0.23}$ Fe $_{2}$ As $_{2}$
journal, November 2012

Stripe antiferromagnetic correlations in ${LaFeAsO}_{1 - x} F_{x}$ probed by ${}^{75}A s$ NMR
journal, June 2010

Atomic coexistence of superconductivity and incommensurate magnetic order in the pnictide $Ba {({Fe}_{1 - x} {Co}_{x})}_{2} {As}_{2}$
journal, October 2009

Magnetic fluctuations and superconducting properties of ${CaKFe}_{4} {As}_{4}$ studied by ${}^{75}{As}$ NMR
journal, September 2017

Vestigial chiral and charge orders from bidirectional spin-density waves: Application to the iron-based superconductors
journal, January 2016

Antiferromagnetic spin correlations and pseudogaplike behavior in $Ca {({Fe}_{1 - x} {Co}_{x})}_{2} {As}_{2}$ studied by ${}^{75}{As}$ nuclear magnetic resonance and anisotropic resistivity
journal, November 2015

Disorder-promoted $C_{4}$ -symmetric magnetic order in iron-based superconductors
journal, April 2016

Optimization of the crystal growth of the superconductor ${CaKFe}_{4} {As}_{4}$ from solution in the $FeAs − {CaFe}_{2} {As}_{2} − {KFe}_{2} {As}_{2}$ system
journal, June 2017

Superconductivity in iron compounds
journal, December 2011

Microscopic Evidence of Direct Coupling between Magnetic and Superconducting Order Parameters in BaFe ₂ (As _{1- x} P _x ) ₂
journal, March 2012

Microscopic Coexistence of Superconductivity and Magnetism in ${Ba}_{1 - x} K_{x} {Fe}_{2} {As}_{2}$
journal, November 2011

Electronic properties, low-energy Hamiltonian, and superconducting instabilities in ${CaKFe}_{4} {As}_{4}$
journal, September 2017

Distinct High- $T$ Transitions in Underdoped ${Ba}_{1 - x} K_{x} {Fe}_{2} {As}_{2}$
journal, August 2010

Stabilizing the spin vortex crystal phase in two-dimensional iron-based superconductors
journal, February 2017

Magnetoelastic coupling in the phase diagram of Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$ as seen via neutron diffraction
journal, May 2011

Enhancement of the Superconducting Gap by Nesting in ${CaKFe}_{4} {As}_{4}$ : A New High Temperature Superconductor
journal, December 2016

Antiferromagnetic ordering in the absence of structural distortion in $Ba {({Fe}_{1 - x} {Mn}_{x})}_{2} {As}_{2}$
journal, December 2010

Microscopic Coexistence of Superconductivity and Antiferromagnetism in Underdoped $Ba ({Fe}_{1 - x} {Ru}_{x})_{2} {As}_{2}$
journal, November 2012

Spin Resonance in the New-Structure-Type Iron-Based Superconductor CaKFe ₄ As ₄
journal, September 2017

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

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

Superconductivity in Iron Compounds
text, January 2011

Microscopic Evidence of Direct Coupling between Magnetic and Superconducting Order Parameters in BaFe$_2$(As$_{1-x}$P$_x$)$_2$
text, January 2011

Microscopic coexistence of antiferromagnetic order and superconductivity in Ba$_{0.77}$K$_{0.23}$Fe$_{2}$As$_{2}$
text, January 2012

Magnetically-Driven Suppression of Nematic Order in an Iron-Based Superconductor
text, January 2013

Vestigial chiral and charge orders from bidirectional spin-density waves: Application to the iron-based superconductors
text, January 2015

Double-Q spin-density wave in iron arsenide superconductors
text, January 2015

Complex phase diagram of Ba$_{1-x}$Na$_{x}$Fe$_{2}$As$_{2}$: a multitude of phases striving for the electronic entropy
text, January 2015

Spin Resonance in the New-Structure-Type Iron-Based Superconductor CaKFe4As4
text, January 2017

Effect of pressure on the self-hole-doped superconductor RbGd ₂ Fe ₄ As ₄ O ₂
journal, December 2018

Odd and Even Modes of Neutron Spin Resonance in the Bilayer Iron-Based Superconductor ${CaKFe}_{4} {As}_{4}$
journal, June 2018

Preferred Magnetic Excitations in the Iron-Based ${Sr}_{1 - x} {Na}_{x} {Fe}_{2} {As}_{2}$ Superconductor
journal, January 2019