Heat Transport in Graphene Ferromagnet-Insulator-Superconductor Junctions

被引：2
|
作者：
Li Xiao-Wei [1 ,2 ]
机构：
[1] Huaiyin Normal Univ, Sch Phys & Elect Elect Engn, Huaian 223300, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2011年 / 28卷 / 04期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1088/0256-307X/28/4/047401
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study heat transport in a graphene ferromagnet-insulator-superconducting junction. It is found that the thermal conductance of the graphene ferromagnet-insulator-superconductor (FIS) junction is an oscillatory function of the barrier strength chi in the thin-barrier limit. The gate potential U-0 decreases the amplitude of thermal conductance oscillation. Both the amplitude and phase of the thermal conductance oscillation varies with the exchange energy E-h. The thermal conductance of a graphene FIS junction displays the usual exponential dependence on temperature, reflecting the s-wave symmetry of superconducting graphene.
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页数：4
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