Coherence length saturation at the low temperature limit in two-dimensional hole gas

被引：3

作者：

Shan, Pujia ^{[1
]}

Fu, Hailong ^{[1
]}

Wang, Pengjie ^{[1
]}

Yang, Jixiang ^{[1
]}

Pfeiffer, L. N. ^{[2
]}

West, K. W. ^{[2
]}

Lin, Xi ^{[1
,3
]}

机构：

[1] Peking Univ, Int Ctr Quantum Mat, Beijing 100871, Peoples R China

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

[3] Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2018年 / 99卷

基金：

美国国家科学基金会;

关键词：

Two-dimensional hole gas; Integer quantum Hall effect; Plateau-plateau transition; Coherence length saturation; Zero-point fluctuations; QUANTUM PHASE-TRANSITIONS; LOCALIZATION; METALS;

D O I：

10.1016/j.physe.2018.01.026

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The plateau-plateau transition in the integer quantum Hall effect is studied in three Hall bars with different widths. The slopes of the Hall resistance as a function of magnetic field follow the scaling power law as expected in the plateau-plateau transition, and saturate a the low temperature limit. Surprisingly, the saturation temperature is irrelevant with the Hall bar size, which suggests that the saturation of the coherence length is intrinsic.

引用

页码：118 / 122

页数：5

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