Coupling of the lattice and superlattice deformations and hysteresis in thermal expansion for the quasi-one-dimensional conductor TaS3 -: art. no. 246401

被引：26

作者：

Golovnya, AV ^{[1
]}

Pokrovskii, VY ^{[1
]}

Shadrin, PM ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Radioengn & Elect, Moscow 103907, Russia

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.88.246401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

An original interferometer-based setup for measurements of length of needlelike samples is developed, and thermal expansion of o-TaS3 crystals is studied. Below the Peierls transition the temperature hysteresis of length L is observed, the width of the hysteresis loop deltaL/L being up to 5 x 10(-5). The behavior of the loop is anomalous: the length changes so that it is in front of its equilibrium value. The hysteresis loop couples with that of conductivity. With lowering the temperature down to 100 K the charge-density waves' elastic modulus grows achieving a value comparable with the lattice Young modulus. Our results could be helpful in consideration of different systems with intrinsic superstructures.

引用

页数：4

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