EVIDENCE FOR 2-DIMENSIONAL QUANTUM WIGNER CRYSTAL

被引：354

作者：

GOLDMAN, VJ

SANTOS, M

SHAYEGAN, M

CUNNINGHAM, JE

机构：

[1] PRINCETON UNIV,DEPT ELECT ENGN,PRINCETON,NJ 08544

[2] AT&T BELL LABS,HOLMDEL,NJ 07733

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.65.2189

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report observations of an electric-field threshold conduction and of related ac voltage (broad-band noise) generation in low-disorder two-dimensioanl electron systems in the extreme magnetic quantum limit. We interpret these phenomena as definitive evidence for formation of a pinned quantum Wigner crystal and determine its melting phase diagram from the disappearance of threshold and noise behavior at higher temperatures. © 1990 The American Physical Society.

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页码：2189 / 2192

页数：4

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