Chiral Majorana fermion modes regulated by a scanning tunneling microscope tip
Chiral Majorana fermion modes regulated by a scanning tunneling microscope tip
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由扫描隧道显微镜尖端调节的手性马约拉纳费米子模式
DOI:
10.1103/physrevb.97.115452
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发表时间:
2017-11
影响因子:
3.7
通讯作者:
Qing-Feng Sun
中科院分区:
文献类型:
--
作者:
Yan-Feng Zhou;Zhe Hou;Ying-Tao Zhang;Qing-Feng Sun
The control of Majorana fermions is an essential procedure for implementing topological quantum computation. The Majorana fermion can be described by a real wave function with only two phases (0 and {\pi}) which provide a controllable degree of freedom. We propose a strategy to regulate the phase of the chiral Majorana state by coupling with a scanning tunneling microscope tip in a system consisting of quantum anomalous Hall insulator coupled with a superconductor. With the change of the chemical potential, the chiral Majorana state can be tuned alternately between 0 and {\pi}, in which, correspondingly, the perfect normal tunneling and perfect crossed Andreev reflection appear. The perfect crossed Andreev reflection, by which a Cooper pair can be split into two electrons going into different terminals completely, leads to a pumping current and distinct quantized resistances. These findings may give a feasible avenue to regulate the phase of Majorana state.
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影响因子:
3.7
作者:
Z. Hou;Yanxia Xing;Ai-Min Guo;Qing-feng Sun
通讯作者:
Z. Hou;Yanxia Xing;Ai-Min Guo;Qing-feng Sun
影响因子:
16.6
作者:
He, James J.;Wu, Jiansheng;Choy, Ting-Pong;Liu, Xiong-Jun;Tanaka, Y.;Law, K. T.
通讯作者:
Law, K. T.
影响因子:
8.6
作者:
Cayssol, J.
通讯作者:
Cayssol, J.
DOI:
--
发表时间:
2015
期刊:
--
影响因子:
--
作者:
A. Bestwick;E. Fox;X. Kou;L. Pan;Kang L. Wang;D. Goldhaber-Gordon
通讯作者:
A. Bestwick;E. Fox;X. Kou;L. Pan;Kang L. Wang;D. Goldhaber-Gordon
影响因子:
8.6
作者:
Sau, Jay D.;Lutchyn, Roman M.;Das Sarma, S.
通讯作者:
Das Sarma, S.