SINGULARITIES IN THE MAGNETIC AND SUPERCONDUCTING PROPERTIES OF YBFEXMO6S8

被引：4

作者：

ALEKSEEVSKII, NE ^{[1
]}

WOLF, G ^{[1
]}

BOHMHAMMEL, K ^{[1
]}

DOBROVOLSKII, NM ^{[1
]}

HOHLFELD, C ^{[1
]}

机构：

[1] INT LAB HIGH MAGNET FIELDS & LOW TEMP,WROCLAW,POLAND

来源：

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH | 1979年 / 51卷 / 02期

关键词：

D O I：

10.1002/pssa.2210510211

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Measurements of the heat capacity (2 to 30 K) and the magnetic susceptibility (2 to 300 K) are reported for nearly homogeneous YbFexMo6S8 compounds of the Chevrel phase, with x = 0, 0.02, and 0.04. For x = 0 and x = 0.02 the samples show a superconducting transition at Tc ≈ 9 K and Tc ≈ 3 K, respectively, whereas for x = 0.04 the superconductivity is completely suppressed by the iron content. All samples show a sharp λ‐type anomaly in nearly the same form within the specific heat at the same temperature Tλ = 2.6 K. The magnetic susceptibility for the YbFe0.04Mo6S8 compound reveals in low magnetic fields at the same temperature an anomaly which is typical for an antiferromagnetic ordering. Therefore it is concluded that the λ‐anomaly can be caused by a “soft” antiferromagnetic long‐range ordering of the Yb3+ magnetic moments arranged in the superconducting matrix. Copyright © 1979 WILEY‐VCH Verlag GmbH & Co. KGaA

引用

页码：399 / 405

页数：7

共 18 条

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