Quantum interference of charge-density waves: Evidence for topological crystals of TaS3

被引：17

作者：

Tsubota, M. ^{[1
]}

Inagaki, K. ^{[1
]}

Tanda, S. ^{[1
]}

机构：

[1] Hokkaido Univ, Dept Appl Phys, Sapporo, Hokkaido, Japan

来源：

PHYSICA B-CONDENSED MATTER | 2009年 / 404卷 / 3-4期

关键词：

Charge-density wave; Interference; Dislocation; Topology;

D O I：

10.1016/j.physb.2008.11.066

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We investigated Aharonov-Bohm (AB) oscillations from charge-density waves (CDWs) in TaS3 ring crystals and demonstrated that only sliding CDWs behave as a macroscopic quantum plane wave coupled to magnetic fields. The periodicity of the oscillations is h/2e within 10% accuracy. This means that sliding CDWs carry 2e charge quanta and that cannot be explained by quasi-particle interference. This is the first unambiguous experimental evidence for the AB effect in CDW loops. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：416 / 418

页数：3

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