Thermoelectric transport through Majorana bound states and violation of Wiedemann-Franz law

被引：35

作者：

Ramos-Andrade, J. P. ^{[1
,2
,3
]}

Avalos-Ovando, O. ^{[2
,3
]}

Orellana, P. A. ^{[1
]}

Ulloa, S. E. ^{[2
,3
]}

机构：

[1] Univ Tecn Federico Santa Maria, Dept Fis, Casilla 110 V, Valparaiso, Chile

[2] Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA

[3] Ohio Univ, Nanoscale & Quantum Phenomena Inst, Athens, OH 45701 USA

来源：

PHYSICAL REVIEW B | 2016年 / 94卷 / 15期

基金：

美国国家科学基金会;

关键词：

NON-ABELIAN STATISTICS; MOLECULAR JUNCTIONS; QUANTUM INFORMATION; SUPERCONDUCTOR; NANOWIRE; FERMIONS; SIGNATURES;

D O I：

10.1103/PhysRevB.94.155436

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study features of thermoelectric transport through a one-dimensional topological system model hosting Majorana bound states (MBSs) at its ends. We describe the behavior of the Seebeck coefficient and the ZT figure of merit for two configurations between the MBS and normal current leads. We find an important violation of the Wiedemann-Franz law in one of these geometries, leading to sizable values of the thermoelectric efficiency over a narrow window in chemical potential away from neutrality. These findings could lead to interesting thermoelectric-based MBS detection devices, via measurements of the Seebeck coefficient and figure of merit.

引用

页数：5

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