The ultra-high-TP charge-density wave in the monoclinic phase of NbS3

被引：14

作者：

Zybtsev, S. G. ^{[1
]}

Pokrovskii, V. Ya ^{[1
]}

Nasretdinova, V. F. ^{[1
]}

Zaitsev-Zotov, S., V ^{[1
]}

Zupanic, E. ^{[2
]}

van Midden, M. A. ^{[2
]}

Pai, Woei Wu ^{[3
,4
]}

机构：

[1] RAS, Kotelnikov Inst Radioengn & Elect, Mokhovaya 11-7, Moscow 125009, Russia

[2] Jozef Stefan Inst, Jamova 39, SI-1000 Ljubljana, Slovenia

[3] Natl Taiwan Univ, Ctr Condensed Matter Sci, Taipei 106, Taiwan

[4] Natl Taiwan Univ, Dept Phys, Taipei 106, Taiwan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2021年 / 854卷

关键词：

Transition metal alloys and compounds; Crystal growth; Peierls transition; Charge-density waves; Topological materials;

D O I：

10.1016/j.jallcom.2020.157098

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report on high temperature (T) studies of conductivity, sigma, of the monoclinic phase of NbS3 (NbS3-II). The compound is shown to be stable up to T similar to 550 K. Threshold non-linear conductivity and Shapiro steps on the I - V curves can be seen up to T-P0 approximate to 450 - 475 K clearly demonstrating sliding of a charge-density wave (CDW). The feature in sigma(T) shows that T-P0 is the temperature of the formation of this CDW. The charges condensed in this CDW show relatively high density and, at the same time, extremely low mobility. Their mobility appears low in the single-particle states as well, giving a plausible clue to the surprising dielectric-like temperature variation of sigma above T-P0. (C) 2020 Elsevier B.V. All rights reserved.

引用

页数：5

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