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Phase separation of Si1-xGex alloys

Published online by Cambridge University Press:  26 February 2011

Eunja Kim  and
Young Hee Lee
Eunja Kim
Affiliation:
Department of Physics and Semiconductor Physics Research Center, Jeonbuk National University, Jeonju 560-756, R. O. Korea
Young Hee Lee
Affiliation:
Department of Physics and Semiconductor Physics Research Center, Jeonbuk National University, Jeonju 560-756, R. O. Korea
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Abstract

We generate liquid and amorphous Si1_xGex alloys for various Ge compositions using ab initio molecular dynamics approach. The electronic bonding characters and structural properties are discussed in terms of radial distribution function, bond angle distribution, and order parameters. Although the order parameters suggest approximately random alloy for all compositions, the snapshots reveal clearly phase separation. We will discuss how the phase can be separated in SiGe alloy system.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 378: Symposium B – Defect and Impurity-Engineered Semiconductors and Devices , 1995 , 1031
Copyright
Copyright © Materials Research Society 1995

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