Coexistence of Magnetism and Superconductivity in the Iron-Based Compound Cs0.8(FeSe0.98)2

Z. Shermadini , Anna Krztoń-Maziopa , M. Bendele , R. Khasanov , H. Luetkens , K. Conder , E. Pomjakushina , S. Weyeneth , V. Pomjakushin , O. Bossen , A. Amato

Abstract

We report on muon-spin rotation and relaxation (μSR), electrical resistivity, magnetization and differential scanning calorimetry measurements performed on a high-quality single crystal of Cs0.8(FeSe0.98)2. Whereas our transport and magnetization data confirm the bulk character of the superconducting state below Tc=29.6(2)  K, the μSR data indicate that the system is magnetic below TN=478.5(3)  K, where a first-order transition occurs. The first-order character of the magnetic transition is confirmed by differential scanning calorimetry data. Taken all together, these data indicate in Cs0.8(FeSe0.98)2 a microscopic coexistence between the superconducting phase and a strong magnetic phase. The observed TN is the highest reported to date for a magnetic superconductor.
Author Z. Shermadini
Z. Shermadini,,
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, Anna Krztoń-Maziopa KChNTCS
Anna Krztoń-Maziopa,,
- Chair Of Inorganic Chemistry And Solid State Technology
, M. Bendele
M. Bendele,,
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, R. Khasanov
R. Khasanov,,
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, H. Luetkens
H. Luetkens,,
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, K. Conder
K. Conder,,
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, E. Pomjakushina
E. Pomjakushina,,
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, S. Weyeneth
S. Weyeneth,,
-
, V. Pomjakushin
V. Pomjakushin,,
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, O. Bossen
O. Bossen,,
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et al.
Journal seriesPhysical Review Letters, ISSN 0031-9007
Issue year2011
Vol106
No11
Pages117602
DOIDOI:10.1103/PhysRevLett.106.117602
URL http://link.aps.org/doi/10.1103/PhysRevLett.106.117602
Languageen angielski
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Coexistence of magnetism and superconductivity in CsFe2Se2_2011-PRL.pdf (file archived - login or check accessibility on faculty) Coexistence of magnetism and superconductivity in CsFe2Se2_2011-PRL.pdf 559.15 KB
Score (nominal)45
Publication indicators WoS Impact Factor: 2011 = 7.37 (2) - 2011=7.013 (5)
Citation count*168 (2015-11-27)
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