TIME-DEPENDENT SPECIFIC-HEAT OF CDW SDW SYSTEMS

被引：6

作者：

MONCEAU, P ^{[1
]}

LASJAUNIAS, JC ^{[1
]}

BILJAKOVIC, K ^{[1
]}

机构：

[1] UNIV ZAGREB,INST PHYS,41001 ZAGREB,CROATIA

来源：

PHYSICA B | 1994年 / 194卷 / pt 1期

关键词：

D O I：

10.1016/0921-4526(94)90531-2

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Thermodynamical properties at very low temperatures point out the glassy nature of the charge or spin density wave (CDW or SDW) ground state. The excess specific heat due to the low energy excitations (LEE) is strongly time dependent. Using a transient heat relaxational method and extending the duration of the heat perturbation, we can follow how the heat is poured out into more and more LEE modes. The time necessary to reach the thermodynamic equilibrium enormously increases at the lowest temperatures (10(5) s at 0.1 K) and the corresponding specific heat is almost ten times larger than in short pulse regime.

引用

页码：403 / 404

页数：2

共 5 条

[1] LOW-ENERGY EXCITATIONS OF CHARGE-DENSITY WAVE METASTABLE STATES IN TAS3 [J].