Zeeman effects on the coherent tunnelling conductance in normal-metal / superconductor / normal-metal double tunnel junctions

Dong Zheng-Chao

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Zeeman effects on the coherent tunnelling conductance in normal-metal / superconductor / normal-metal double tunnel junctions

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摘要

The coherent quantum transport is investigated in normal-metal/superconductorormal-metal (N/S/N) double tunnel junctions under a Zeeman magnetic field on the S. Taking simultaneously into account the electron-injected current from one N electrode and the hole-injected current from the other N electrode, we derive a general formula for the differential conductance in the N/S/N system. It is shown that the conductance spectrum exhibits oscillatory behaviour with the bias voltage, and the oscillation amplitude is reduced with increasing temperature and Zeeman magnetic field, the Zeeman energy can lead to the Zeeman splitting of conductance peaks. In the tunnel limit, a series of bound states of quasiparticles will form in the S.

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来源
《中国物理：英文版》 |2005年第6期|1209-1216|共8页
作者
Dong Zheng-Chao;
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作者单位

Department of Physics,Huaiying Teachers College,Huaian 223001,China;

Jiangsu Province Key Laboratory for Chemistry of Low-Dimensional Materials,Huaian 223001, China;

National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China;

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原文格式 PDF
正文语种 chi
中图分类物理学;
关键词
Zeeman effect; coherent effect; normal-metal/superconductorormal-metal tunnel junctions;

机译：塞曼效应;相干效应;正常金属/超导体/正常金属隧道结;

Zeeman effects on the coherent tunnelling conductance in normal-metal / superconductor / normal-metal double tunnel junctions

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