Distinctive features of the charge density wave collective motion driven by Hall electric field in NbSe3

被引：4

作者：

Frolov, A., V ^{[1
]}

Orlov, A. P. ^{[1
]}

Gay, F. ^{[2
,3
]}

Sinchenko, A. A. ^{[1
,4
]}

Monceau, P. ^{[2
,3
]}

机构：

[1] RAS, Kotelnikov Inst Radioengn & Elect, Moscow 125009, Russia

[2] Univ Grenoble Alpes, Inst Neel, F-38042 Grenoble, France

[3] Inst Neel, CNRS, F-38042 Grenoble, France

[4] Moscow MV Lomonosov State Univ, Moscow 119991, Russia

来源：

APPLIED PHYSICS LETTERS | 2021年 / 118卷 / 21期

关键词：

CONDUCTIVITY; CRYSTALS;

D O I：

10.1063/5.0051438

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present a comparative study of the charge density wave (CDW) sliding at low temperatures in NbSe3 between two configurations: the conventional one with the current applied along the chain axis and that, the CDW being driven by the Hall electric field, with the current applied along micrometer-sized bridge-type structures cut perpendicular to the chain axis. In this Hall bar configuration, nonlinear properties can be easily extended to much lower temperatures. The threshold electric field, E-t, for CDW depinning is very sharp and has been measured down to 0.1 mK. It is found that E-t becomes temperature independent below T approximate to 4.2 K, which suggests a crossover from thermal fluctuations to a tunneling mechanism for CDW depinning.

引用

页数：4

共 19 条

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