Positive curvature in the temperature dependence of H-c2 in KxBa1-xBiO3

被引:29
|
作者
Gantmakher, VF [1 ]
Klinkova, LA [1 ]
Barkovskii, NV [1 ]
Tsydynzhapov, GE [1 ]
Wiegers, S [1 ]
Geim, AK [1 ]
机构
[1] UNIV NIJMEGEN, HIGH FIELD MAGNET LAB, NL-6500 GL NIJMEGEN, NETHERLANDS
关键词
D O I
10.1103/PhysRevB.54.6133
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We report an upward curvature in the temperature dependence of the upper critical field H-c2(T) in KxBa1-xBiO3 single crystals using ac-susceptibility measurements and magnetic fields up to 25 T. A possible role of Landau quantization in such uncommon behavior is discussed.
引用
收藏
页码:6133 / 6136
页数:4
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