Electronic properties and elastic constants of the ordered Ge1-xSnx alloys

被引:58
作者
Bouarissa, N [1 ]
Annane, F
机构
[1] Univ Msila, Dept Phys, Msila 28000, Algeria
[2] Univ Skikda, Dept Phys, Skikda 21000, Algeria
来源
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 2002年 / 95卷 / 02期
关键词
pseudopotential method; Harrison bond-orbital model; alloys; electronic properties; elastic constants;
D O I
10.1016/S0921-5107(02)00203-9
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Based on the pseudopotential method within the virtual crystal approximation combined with the Harrison bond-orbital model, we have investigated the electronic properties and elastic constants of the ordered Ge1-xSnx alloys at low temperatures. Our results agree generally very well with available experimental data. We predict a transition from an indirect to direct gap at x approximate to 0.09. (C) 2002 Published by Elsevier Science B.V.
引用
收藏
页码:100 / 106
页数:7
相关论文
共 20 条
[1]   BOND LENGTHS, FORCE-CONSTANTS AND LOCAL IMPURITY DISTORTIONS IN SEMICONDUCTORS [J].
BARANOWSKI, JM .
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1984, 17 (35) :6287-6301
[2]   The behaviour of electron valence and conduction charge densities in InP under pressure [J].
Bouarissa, N .
MATERIALS CHEMISTRY AND PHYSICS, 2000, 65 (01) :107-112
[3]   Effects of compositional disorder upon electronic and lattice properties of GaxIn1-xAs [J].
Bouarissa, N .
PHYSICS LETTERS A, 1998, 245 (3-4) :285-291
[4]   Electron valence charge densities in Hg1-xCdxTe mixed crystals [J].
Bouarissa, N .
INFRARED PHYSICS & TECHNOLOGY, 1998, 39 (05) :265-270
[5]   The effect of the violation of Vegard's law on the optical bowing in Si1-xGex alloys [J].
Charifi, Z ;
Bouarissa, N .
PHYSICS LETTERS A, 1997, 234 (06) :493-497
[6]   NONLOCAL PSEUDOPOTENTIAL CALCULATIONS FOR ELECTRONIC-STRUCTURE OF 11 DIAMOND AND ZINCBLENDE SEMICONDUCTORS [J].
CHELIKOWSKY, JR ;
COHEN, ML .
PHYSICAL REVIEW B, 1976, 14 (02) :556-582
[7]  
Cohen M. L., 1988, Electronic Structure and Optical Properties of Semiconductors
[8]   BAND STRUCTURES AND PSEUDOPOTENTIAL FORM FACTORS FOR 14 SEMICONDUCTORS OF DIAMOND AND ZINC-BLENDE STRUCTURES [J].
COHEN, ML ;
BERGSTRESSER, TK .
PHYSICAL REVIEW, 1966, 141 (02) :789-+
[9]  
Harrison W.A., 1980, Electronic Structure and the Properties of Solids: The Physics of the Chemical Bond
[10]   BOND-ORBITAL MODEL .2. [J].
HARRISON, WA ;
CIRACI, S .
PHYSICAL REVIEW B, 1974, 10 (04) :1516-1527