期刊
PHYSICA B-CONDENSED MATTER
卷 407, 期 11, 页码 1707-1710出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physb.2012.01.012
关键词
Nonlinear conductivity; Phase transition; Charge density wave
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.
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