Andreev-Fano Effect in a Hybrid Normal-Metal/Superconductor Interferometer

被引：0
|
作者：
ZHU Yu~1 MA Zhong-Shui~1 SUN Qing-Feng~2 LIN Tsung-Han~11 State Key Laboratory for Mesoscopic Physics and Department of Physics
机构：
来源：
Communications in Theoretical Physics | 2004年 / 42卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Andreev-Fano effect; hybrid N/S interferometer;
D O I：
暂无
中图分类号：
O488 [介观物理];
学科分类号：
070205 ; 0805 ; 080502 ; 0809 ;
摘要：
We report on a new type of Fano effect,named as Andreev-Fano effect,in a hybrid normal-metal/supee-conductor (N/S) interferometer embedded with a quantum dot.Compared with the conventional Fano effect,Andreev-Fano effect has some new features related to the characteristics of Andreev reflection.In the linear response regime,theline shape is the square of the conventional Fano shape,while in the nonlinear transport,a sharp resonant structure issuperposed on an expanded interference pattern,which is qualitatively different from the conventional Fano effect.Thephase dependence of the hybrid N/S interferometer is also distinguished from those of all-N or all-S interferometers.
引用
收藏
页码：155 / 160
页数：6
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