Nodeless superconductivity in Ir1-xPtxTe2 with strong spin-orbital coupling

被引：16
|
作者：
Zhou, S. Y. [1 ,2 ]
Li, X. L. [1 ,2 ]
Pan, B. Y. [1 ,2 ]
Qiu, X. [1 ,2 ]
Pan, J. [1 ,2 ]
Hong, X. C. [1 ,2 ]
Zhang, Z. [1 ,2 ]
Fang, A. F. [3 ]
Wang, N. L. [3 ]
Li, S. Y. [1 ,2 ]
机构：
[1] Fudan Univ, Dept Phys, State Key Lab Surface Phys, Shanghai 200433, Peoples R China
[2] Fudan Univ, Adv Mat Lab, Shanghai 200433, Peoples R China
[3] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
来源：
EPL | 2013年 / 104卷 / 02期
关键词：
THERMAL-CONDUCTIVITY;
D O I：
10.1209/0295-5075/104/27010
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The thermal conductivity. of the superconductor Ir1-xPtxTe2 (x = 0.05) single crystal with strong spin-orbital coupling was measured down to 50 mK. The residual linear term kappa(0)/T is negligible in zero magnetic field. In low magnetic field, kappa(0)/T shows a slow field dependence. These results demonstrate that the superconducting gap of Ir1-xPtxTe2 is nodeless, and the pairing symmetry is likely a conventional s-wave, despite the existence of strong spin-orbital coupling and a quantum critical point. Copyright (C) EPLA, 2013
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页数：5
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