Thermal conductivity as a probe of unconventional superconducting gap (vol 103, pg 148, 1997)

被引:3
作者
Aubin, H [1 ]
Behnia, K [1 ]
Ribault, M [1 ]
Taillefer, L [1 ]
Gagnon, R [1 ]
机构
[1] MCGILL UNIV, DEPT PHYS, MONTREAL, PQ H3A 2T8, CANADA
来源
ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1997年 / 104卷 / 01期
关键词
D O I
10.1007/s002570050434
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We have carried out a comparative study of the thermal conductivity of two rectangular single crystals: a niobium sample and a detwinned YBCO. Thermal conductivity was measured as a function of the relative orientation of the crystaline axes and a magnetic field applied parallel to the sample plane. Different angular variations, two-fold for Nb and four-fold for YBCO, were observed in the two case. We discuss the microscopic effects related to the gap structure which are at the origin of this qualitative difference in the behavior of thermal conductivity in these two superconductors.
引用
收藏
页码:175 / 177
页数:3
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