Synthetic helical liquid in a quantum wire

被引：11

作者：

Japaridze, George I. ^{[1
,2
]}

Johannesson, Henrik ^{[3
]}

Malard, Mariana ^{[4
]}

机构：

[1] Andronikashvili Inst Phys, GE-0177 Tbilisi, Georgia

[2] Ilia State Univ, GE-0162 Tbilisi, Georgia

[3] Univ Gothenburg, Dept Phys, SE-41296 Gothenburg, Sweden

[4] Univ Brasilia, Fac UnB Planaltina, BR-73300000 Planaltina, DF, Brazil

来源：

PHYSICAL REVIEW B | 2014年 / 89卷 / 20期

基金：

瑞典研究理事会; 瑞士国家科学基金会;

关键词：

SINE-GORDON MODEL; NEUTRINOS; TRANSPORT; ABSENCE; LATTICE;

D O I：

10.1103/PhysRevB.89.201403

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We show that the combination of a Dresselhaus interaction and a spatially periodic Rashba interaction leads to the formation of a helical liquid in a quantum wire when the electron-electron interaction is weakly screened. The effect is sustained by a helicity-dependent effective band gap which depends on the size of the Dresselhaus and Rashba spin-orbit couplings. We propose a design for a semiconductor device in which the helical liquid can be realized and probed experimentally.

引用

页数：5

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