Concentration anomalies of the thermal conductivity in PbTe-PbSe semiconductor solid solutions

被引：2

作者：

Rogacheva, E. I. ^{[1
]}

Vodorez, O. S. ^{[1
]}

Nashchekina, O. N. ^{[1
]}

Dresselhaus, M. S. ^{[2
]}

机构：

[1] Natl Tech Univ, Kharkov Polytech Inst, UA-61002 Kharkov, Ukraine

[2] MIT, Cambridge, MA 02139 USA

来源：

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2014年 / 251卷 / 06期

基金：

美国国家科学基金会;

关键词：

PbSe; PbTe; solid solutions; thermal conductivity; SELF-ORGANIZATION PROCESSES;

D O I：

10.1002/pssb.201350293

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Studies of the concentration (0-3 mol% PbSe) and temperature (250-670 K) dependences of the lattice thermal conductivity lambda(p) in PbTe-PbSe semiconductor solid solutions have shown that in the range of 0.75-1.25 mol% PbSe an anomalous increase in lp under increasing PbSe concentration takes place in the lp isotherms, plotted as lambda(p)/lambda(p0), where lambda(p0) is the lattice thermal conductivity in the absence of PbSe. The observed effect is attributed to critical phenomena and self-organization processes accompanying the transition from dilute solid solutions to an impurity continuum.

引用

页码：1231 / 1238

页数：8

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