NMR characterization of sulphur substitution effects in the KxFe2-ySe2-zSz high-Tc superconductor

Torchetti, D. A.; Imai, T.; Lei, H. C.; Petrovic, C.

doi:10.1103/PhysRevB.85.144516

NMR characterization of sulphur substitution effects in the K_xFe_2-ySe_2-zS_z high-T_c superconductor

Journal Article · Tue Apr 17 00:00:00 EDT 2012 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PhysRevB.85.144516· OSTI ID:1098744

Torchetti, D. A.; Imai, T.; Lei, H. C.; Petrovic, C.

We present a⁷⁷ Se NMR study of the effect of S substitution in the high-T_c superconductor K_xFe_2-ySe_2-zS_z in a temperature range up to 250 K. We examine two S concentrations, with z=0.8 (Tc~ 26 K) and z=1.6 (nonsuperconducting). The samples containing sulphur exhibit broader NMR line shapes than the K_xFe₂Se₂ sample due to local disorder in the Se environment. Our Knight shift ⁷⁷K data indicate that in all samples, uniform spin susceptibility decreases with temperature, and that the magnitude of the Knight shift itself decreases with increased S concentration. In addition, S substitution progressively suppresses low-frequency spin fluctuations. None of the samples exhibit an enhancement of low-frequency antiferromagnetic spin fluctuations near T_c in 1/T₁T, as seen in FeSe.

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Sponsoring Organization:: USDOE

OSTI ID:: 1098744

Alternate ID(s):: OSTI ID: 1385508
OSTI ID: 1081151

Journal Information:: Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 14 Vol. 85; ISSN 1098-0121; ISSN PRBMDO

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

References (31)

Pressure effects on FeSe family superconductors Mizuguchi, Yoshikazu; Tomioka, Fumiaki; Deguchi, Keita Physica C: Superconductivity and its Applications, Vol. 470 https://doi.org/10.1016/j.physc.2009.10.098	journal	December 2010
Iron-Based Layered Superconductor La[O _1- _x F _x ]FeAs ( x = 0.05−0.12) with T _c = 26 K Kamihara, Yoichi; Watanabe, Takumi; Hirano, Masahiro Journal of the American Chemical Society, Vol. 130, Issue 11 https://doi.org/10.1021/ja800073m	journal	March 2008
Electronic and magnetic phase diagram of β-Fe1.01Se with superconductivity at 36.7 K under pressure Medvedev, S.; McQueen, T. M.; Troyan, I. A. Nature Materials, Vol. 8, Issue 8 https://doi.org/10.1038/nmat2491	journal	June 2009
High-temperature superconductivity in iron-based materials Paglione, Johnpierre; Greene, Richard L. Nature Physics, Vol. 6, Issue 9 https://doi.org/10.1038/nphys1759	journal	August 2010
Superconductivity at 27K in tetragonal FeSe under high pressure Mizuguchi, Yoshikazu; Tomioka, Fumiaki; Tsuda, Shunsuke Applied Physics Letters, Vol. 93, Issue 15 https://doi.org/10.1063/1.3000616	journal	October 2008
Iron-based superconductors Day, Charles Physics Today, Vol. 62, Issue 8 https://doi.org/10.1063/1.3206093	journal	August 2009
Superconductivity in the PbO-type structure -FeSe Hsu, F. -C.; Luo, J. -Y.; Yeh, K. -W. Proceedings of the National Academy of Sciences, Vol. 105, Issue 38 https://doi.org/10.1073/pnas.0807325105	journal	September 2008
The puzzle of high temperature superconductivity in layered iron pnictides and chalcogenides Johnston, David C. Advances in Physics, Vol. 59, Issue 6 https://doi.org/10.1080/00018732.2010.513480	journal	October 2010
F 19 NMR investigation of the iron pnictide superconductor LaFeAsO 0.89 F 0.11 Ahilan, K.; Ning, F. L.; Imai, T. Physical Review B, Vol. 78, Issue 10 https://doi.org/10.1103/PhysRevB.78.100501	journal	September 2008
Extreme sensitivity of superconductivity to stoichiometry in Fe 1 + δ Se McQueen, T. M.; Huang, Q.; Ksenofontov, V. Physical Review B, Vol. 79, Issue 1 https://doi.org/10.1103/PhysRevB.79.014522	journal	January 2009
Pnictogen height as a possible switch between high- T c nodeless and low- T c nodal pairings in the iron-based superconductors Kuroki, Kazuhiko; Usui, Hidetomo; Onari, Seiichiro Physical Review B, Vol. 79, Issue 22 https://doi.org/10.1103/PhysRevB.79.224511	journal	June 2009
Pressure evolution of the low-temperature crystal structure and bonding of the superconductor FeSe ( T c = 37 K ) Margadonna, S.; Takabayashi, Y.; Ohishi, Y. Physical Review B, Vol. 80, Issue 6 https://doi.org/10.1103/PhysRevB.80.064506	journal	August 2009
Superconductivity in the iron selenide K x Fe 2 Se 2 ( 0 ≤ x ≤ 1.0 ) Guo, Jiangang; Jin, Shifeng; Wang, Gang Physical Review B, Vol. 82, Issue 18 https://doi.org/10.1103/PhysRevB.82.180520	journal	November 2010
Se 77 NMR investigation of the K x Fe 2 − y Se 2 high- T c superconductor ( T c = 33 K) Torchetti, D. A.; Fu, M.; Christensen, D. C. Physical Review B, Vol. 83, Issue 10 https://doi.org/10.1103/PhysRevB.83.104508	journal	March 2011
Spin-glass behavior of semiconducting K x Fe 2 − y S 2 Lei, Hechang; Abeykoon, Milinda; Bozin, Emil S. Physical Review B, Vol. 83, Issue 18 https://doi.org/10.1103/PhysRevB.83.180503	journal	May 2011
Critical current density and mechanism of vortex pinning in K x Fe 2 − y Se 2 doped with S Lei, Hechang; Petrovic, C. Physical Review B, Vol. 84, Issue 5 https://doi.org/10.1103/PhysRevB.84.052507	journal	August 2011
Anisotropy in the Electrical Resistivity and Susceptibility of Superconducting BaFe 2 As 2 Single Crystals Wang, X. F.; Wu, T.; Wu, G. Physical Review Letters, Vol. 102, Issue 11 https://doi.org/10.1103/PhysRevLett.102.117005	journal	March 2009
Why Does Undoped FeSe Become a High- T c Superconductor under Pressure? Imai, T.; Ahilan, K.; Ning, F. L. Physical Review Letters, Vol. 102, Issue 17 https://doi.org/10.1103/PhysRevLett.102.177005	journal	April 2009
Contrasting Spin Dynamics between Underdoped and Overdoped Ba ( Fe 1 − x Co x ) 2 As 2 Ning, F. L.; Ahilan, K.; Imai, T. Physical Review Letters, Vol. 104, Issue 3 https://doi.org/10.1103/PhysRevLett.104.037001	journal	January 2010
Absence of a Holelike Fermi Surface for the Iron-Based K 0.8 Fe 1.7 Se 2 Superconductor Revealed by Angle-Resolved Photoemission Spectroscopy Qian, T.; Wang, X. -P.; Jin, W. -C. Physical Review Letters, Vol. 106, Issue 18 https://doi.org/10.1103/PhysRevLett.106.187001	journal	May 2011
Se 77 NMR Study of the Pairing Symmetry and the Spin Dynamics in K y Fe 2 − x Se 2 Yu, Weiqiang; Ma, L.; He, J. B. Physical Review Letters, Vol. 106, Issue 19 https://doi.org/10.1103/PhysRevLett.106.197001	journal	May 2011
Phase Diagram of K x Fe 2 − y Se 2 − z S z and the Suppression of its Superconducting State by an Fe 2 − Se / S Tetrahedron Distortion Lei, Hechang; Abeykoon, Milinda; Bozin, Emil S. Physical Review Letters, Vol. 107, Issue 13 https://doi.org/10.1103/PhysRevLett.107.137002	journal	September 2011
High-temperature superconductivity in the iron pnictides Norman, Michael Physics, Vol. 1 https://doi.org/10.1103/Physics.1.21	journal	September 2008
EXPGUI , a graphical user interface for GSAS Toby, Brian H. Journal of Applied Crystallography, Vol. 34, Issue 2 https://doi.org/10.1107/S0021889801002242	journal	April 2001
Evolution from Itinerant Antiferromagnet to Unconventional Superconductor with Fluorine Doping in LaFeAs(O _{1- x} F _x ) Revealed by ⁷⁵ As and ¹³⁹ La Nuclear Magnetic Resonance Nakai, Yusuke; Ishida, Kenji; Kamihara, Yoichi Journal of the Physical Society of Japan, Vol. 77, Issue 7 https://doi.org/10.1143/JPSJ.77.073701	journal	July 2008
⁵⁹ Co and ⁷⁵ As NMR Investigation of Electron-Doped High T _c Superconductor BaFe _1.8 Co _0.2 As ₂ ( T _c = 22 K) Ning, Fanlong; Ahilan, Kanagasingham; Imai, Takashi Journal of the Physical Society of Japan, Vol. 77, Issue 10 https://doi.org/10.1143/JPSJ.77.103705	journal	October 2008
Spin Susceptibility, Phase Diagram, and Quantum Criticality in the Eelctron-Doped High T _c Superconductor Ba(Fe _{1- x} Co _x ) ₂ As ₂ Ning, Fanlong; Ahilan, Kanagasingham; Imai, Takashi Journal of the Physical Society of Japan, Vol. 78, Issue 1 https://doi.org/10.1143/JPSJ.78.013711	journal	January 2009
Substitution Effects on FeSe Superconductor Mizuguchi, Yoshikazu; Tomioka, Fumiaki; Tsuda, Shunsuke Journal of the Physical Society of Japan, Vol. 78, Issue 7 https://doi.org/10.1143/JPSJ.78.074712	journal	July 2009
Possible Superconducting Symmetry and Magnetic Correlations in K _0.8 Fe ₂ Se ₂ : A ⁷⁷ Se-NMR Study Kotegawa, Hisashi; Hara, Yudai; Nohara, Hiroki Journal of the Physical Society of Japan, Vol. 80, Issue 4 https://doi.org/10.1143/JPSJ.80.043708	journal	April 2011
Anisotropic spin fluctuations and multiple superconducting gaps in hole-doped Ba _0.72 K _0.28 Fe ₂ As ₂ : NMR in a single crystal Matano, K.; Li, Z.; Sun, G. L. EPL (Europhysics Letters), Vol. 87, Issue 2 https://doi.org/10.1209/0295-5075/87/27012	journal	July 2009
Upper critical fields and superconducting anisotropy of K _0.70 Fe _1.55 Se _1.01 S _0.99 and K _0.76 Fe _1.61 Se _0.96 S _1.04 single crystals Lei, Hechang; Petrovic, C. EPL (Europhysics Letters), Vol. 95, Issue 5 https://doi.org/10.1209/0295-5075/95/57006	journal	August 2011

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