Bowing effect in elastic constants of dilute Ga(As,N) alloys

被引：3

作者：

Berggren, Jonas ^{[1
]}

Hanke, Michael ^{[1
]}

Trampert, Achim ^{[1
]}

机构：

[1] Paul Drude Inst Festkorperelekt, Hausvogteipl 5-7, D-10117 Berlin, Germany

来源：

APPLIED PHYSICS LETTERS | 2016年 / 108卷 / 18期

关键词：

THIN-FILMS; NANOINDENTATION;

D O I：

10.1063/1.4948935

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We study the elastic properties of dilute Ga(As,N) thin films grown on GaAs(001) by means of nano-indentation and complementary dynamic finite element calculations. The experimental results of indentation modulus are compared with simulations in order to extract the cubic elastic constants c(ij) as a function of nitrogen content of the Ga(As,N) alloys. Both, indentation modulus and elastic constants decrease with increasing nitrogen content, which proves a strong negative bowing effect in this system in contrast to Vegard's law. Published by AIP Publishing.

引用

页数：4

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