THERMODYNAMIC ANALYSIS OF ZN-CD-TE, ZN-HG-TE AND CD-HG-TE - PHASE-SEPARATION IN ZNXCD1-XTE AND IN ZNXHG1-XTE

被引：54

作者：

MARBEUF, A ^{[1
]}

DRUILHE, R ^{[1
]}

TRIBOULET, R ^{[1
]}

PATRIARCHE, G ^{[1
]}

机构：

[1] CNRS,PHYS MAT LAB,F-92195 MEUDON,FRANCE

来源：

JOURNAL OF CRYSTAL GROWTH | 1992年 / 117卷 / 1-4期

关键词：

D O I：

10.1016/0022-0248(92)90707-P

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The thermodynamic coherent analysis of all data in Zn-Cd-Te, Zn-Hg-Te and Ce-Hg-Te ternaries, combined with that in the corresponding binaries, is understood by using a subregular associated liquid model and the Onda-Ito model in the pseudoregular approximation for the pseudobinary alloys. A clustering tendency is found which decreases from ZnxCd1-xTe to ZnxHg1-xTe, whereas CdxHg1-xTe is nearly ideal. A miscibility gap is predicted for ZnxCd1-xTe and ZnxHg1-xTe alloys below 428 and 329-degrees-C, respectively. Transmission electron microscopy studies on (100) MOCVD ZnxCd1-xTe layers grown at 365-degrees-C show such a phase separation: the corresponding relative lattice mismatch ((3.3 +/- 0.2)%) is very near the predicted one (3.8%).

引用

页码：10 / 15

页数：6

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