Majorana-modified electron transport through one quantum-dot system with ferromagnetic leads

被引：3

作者：

Dai, Xue-Feng ^{[1
]}

Gong, Tong ^{[1
]}

Zhang, Lian-Lian ^{[1
]}

Xu, Tong-Tong ^{[1
]}

Wang, Xiao-Qi ^{[2
]}

Gong, W. J. ^{[1
]}

机构：

[1] Northeastern Univ, Coll Sci, Shenyang 110819, Peoples R China

[2] Yingkou Inst Technol, Basic Courses Teaching & Res Dept, Yingkou 115014, Peoples R China

来源：

PHYSICS LETTERS A | 2022年 / 421卷

关键词：

Electron transport; Quantum dot; Ferromagnetic leads; Majorana bound state;

D O I：

10.1016/j.physleta.2021.127773

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Electron transport through the quantum-dot system with ferromagnetic leads is theoretically investigated, by introducing one Majorana bound state (MBS) to be side-coupled with the dot. It is shown that even for the ferromagnetic leads, the zero-bias conductance is manifested as a peak. However, its magnitude becomes more adjustable, especially when the dot suffers from the external magnetic field and superconducting proximity effect. The other notable result is that the magnetoresistance displays interesting characteristics in this system, which is related to the interplay between the magnetization direction of the MBS and other structural parameters. We believe that this work can be helpful in presenting the MBS-assisted transport behaviors in quantum-dot systems. (C) 2021 Elsevier B.V. All rights reserved.

引用

页数：7

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