Biaxial moduli of coherent Si1-xGex films on Si (001)

被引:13
作者
Floro, JA
Chason, E
Lee, SR
Petersen, GA
机构
[1] Sandia National Laboratories, Albuquerque
关键词
D O I
10.1063/1.120006
中图分类号
O59 [应用物理学];
学科分类号
摘要
The biaxial moduli of coherently strained Si1-xGex thin films have been determined over the composition range x=0.15-0.6 from independent measurements of film stress and strain. Our results indicate that use of the rule of mixtures to determine the strained-alloy elastic constants from the bulk values for pure Si and Ge is valid, and that higher-order elastic effects are relatively unimportant over this composition range. (C) 1997 American Institute of Physics.
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页码:1694 / 1696
页数:3
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