Nonlinear conductivity of quasi-one-dimensional layered compound TiS3

被引:28
|
作者
Gorlova, I. G. [1 ]
Zybtsev, S. G. [1 ]
Pokrovskii, V. Ya [1 ]
Bolotina, N. B. [2 ]
Verin, I. A. [2 ]
Titov, A. N. [3 ]
机构
[1] RAS, Kotelnikov Inst Radioengn & Elect, Moscow 125009, Russia
[2] RAS, Shubnikov Inst Crystallog, Moscow 119333, Russia
[3] Ural Fed Univ, Ekaterinburg 620131, Russia
关键词
Nonlinear conductivity; Phase transition; Charge density wave;
D O I
10.1016/j.physb.2012.01.012
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The crystal structure and transport properties of TiS3 whiskers in the plane of layers (ab) have been studied. Maxima of the logarithmic derivative of resistance, dln R/d(1/T), are observed at 17, 60 and 120 K both along and across the chains. Strong nonlinearity of the current-voltage characteristics has been revealed in both directions. Nonlinear conductivity along the chains is observed up to T=60 K, while in the transverse direction it is observed up to T=130 K. The results indicate possible phase transitions of electrons to collective states, probably, charge density waves. (c) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码:1707 / 1710
页数:4
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