Spin and charge Nernst effect in a four-terminal double-dot interferometer

被引：1
|
作者：
Liang, Feng [1 ]
Zhang, Dong [2 ]
Gao, Ben-Ling [1 ]
Song, Guang [1 ]
Gu, Yu [3 ,4 ]
机构：
[1] Huaiyin Inst Technol, Dept Appl Phys, Huaian 223003, Peoples R China
[2] Liaocheng Univ, Sch Phys Sci & Informat Technol, Liaocheng 252059, Peoples R China
[3] Jinan Univ, Dept Phys, Guangzhou 510632, Guangdong, Peoples R China
[4] Jinan Univ, Siyuan Lab, Guangzhou 510632, Guangdong, Peoples R China
来源：
PHYSICS LETTERS A | 2018年 / 382卷 / 42-43期
基金：
中国国家自然科学基金;
关键词：
Spin Nernst effect; Charge Nernst effect; Rashba spin-orbit interaction; Interferometer; Thermospin generator; RASHBA;
D O I：
10.1016/j.physleta.2018.08.025
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We investigate the spin and charge Nernst effect of a four-terminal Aharonov-Bohm interferometer with Rashba spin-orbit interaction (RS01). It is shown that a pure spin Nernst effect or a fully spin-polarized Nernst effect can be obtained by modulating the magnetic flux phase phi and the RSOI induced phase phi. It is also demonstrated that some windows of phi (or phi) for maintaining an almost fully spin-polarized Nernst effect exist and their width is under the control of the other phase. Moreover, for the charge Nernst coefficient N, and spin Nernst coefficient Ns the relationship N-c(phi,phi)= N-s(phi, phi) always holds. These results suggest that our proposal may act as a controllable thermospin generator. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：3135 / 3140
页数：6
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