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
收藏
页码：118 / 122
页数：5
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