Scaling of Majorana Zero-Bias Conductance Peaks

被引：376

作者：

Nichele, Fabrizio ^{[1
,2
]}

Drachmann, Asbjorn C. C. ^{[1
,2
]}

Whiticar, Alexander M. ^{[1
,2
]}

O'Farrell, Eoin C. T. ^{[1
,2
]}

Suominen, Henri J. ^{[1
,2
]}

Fornieri, Antonio ^{[1
,2
]}

Wang, Tian ^{[3
,4
,5
]}

Gardner, Geoffrey C. ^{[3
,4
,5
,6
]}

Thomas, Candice ^{[3
,4
,5
]}

Hatke, Anthony T. ^{[3
,4
,5
]}

Krogstrup, Peter ^{[1
,2
]}

Manfra, Michael J. ^{[3
,4
,5
,6
,7
]}

Flensberg, Karsten ^{[1
,2
]}

Marcus, Charles M. ^{[1
,2
]}

机构：

[1] Univ Copenhagen, Ctr Quantum Devices, Univ Pk 5, DK-2100 Copenhagen, Denmark

[2] Univ Copenhagen, Niels Bohr Inst, Stn Copenhagen Q, Univ Pk 5, DK-2100 Copenhagen, Denmark

[3] Purdue Univ, Dept Phys & Astron, W Lafayette, IN 47907 USA

[4] Purdue Univ, Stn Purdue Q, W Lafayette, IN 47907 USA

[5] Purdue Univ, Birck Nanotechnol Ctr, W Lafayette, IN 47907 USA

[6] Purdue Univ, Sch Mat Engn, W Lafayette, IN 47907 USA

[7] Purdue Univ, Sch Elect & Comp Engn, W Lafayette, IN 47907 USA

来源：

PHYSICAL REVIEW LETTERS | 2017年 / 119卷 / 13期

基金：

新加坡国家研究基金会;

关键词：

SEMICONDUCTOR-SUPERCONDUCTOR NANOWIRES; FERMIONS; GAP;

D O I：

10.1103/PhysRevLett.119.136803

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report an experimental study of the scaling of zero-bias conductance peaks compatible with Majorana zero modes as a function of magnetic field, tunnel coupling, and temperature in one-dimensional structures fabricated from an epitaxial semiconductor-superconductor heterostructure. Results are consistent with theory, including a peak conductance that is proportional to tunnel coupling, saturates at 2e(2)/h, decreases as expected with field-dependent gap, and collapses onto a simple scaling function in the dimensionless ratio of temperature and tunnel coupling.

引用

页数：5

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