Competing Charge Density Waves Probed by Nonlinear Transport and Noise in the Second and Third Landau Levels

被引：18

作者：

Bennaceur, K. ^{[1
,2
,3
,4
]}

Lupien, C. ^{[1
,2
]}

Reulet, B. ^{[1
,2
]}

Gervais, G. ^{[4
]}

Pfeiffer, L. N. ^{[5
]}

West, K. W. ^{[5
]}

机构：

[1] Univ Sherbrooke, Dept Phys, Sherbrooke, PQ J1K 2R1, Canada

[2] Univ Sherbrooke, Inst Quant, Sherbrooke, PQ J1K 2R1, Canada

[3] Amrita Vishwa Vidyapeetham, Dept Phys, Amritapuri 690525, India

[4] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada

[5] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA

来源：

PHYSICAL REVIEW LETTERS | 2018年 / 120卷 / 13期

基金：

加拿大创新基金会; 加拿大自然科学与工程研究理事会; 美国国家科学基金会;

关键词：

2-DIMENSIONAL ELECTRONS; QUANTUM; LIQUID; PHASES;

D O I：

10.1103/PhysRevLett.120.136801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Charge density waves (CDWs) in the second and third Landau levels (LLs) are investigated by both nonlinear electronic transport and noise. The use of a Corbino geometry ensures that only bulk properties are probed, with no contribution from edge states. Sliding transport of CDWs is revealed by narrow band noise in reentrant quantum Hall states R2a and R2c of the second LL, as well as in pinned CDWs of the third LL. Competition between various phases-stripe, pinned CDW, or fractional quantum Hall liquid-in both LLs are clearly revealed by combining noise data with maps of conductivity versus magnetic field and bias voltage.

引用

页数：5

共 33 条

[1] Experimental probe of topological orders and edge excitations in the second Landau level [J].