Structural properties of a GaNxP1-x alloy:: Raman studies

被引：24

作者：

Buyanova, IA ^{[1
]}

Chen, WM

Goldys, EM

Xin, HP

Tu, CW

机构：

[1] Linkoping Univ, Dept Phys & Measurement Technol, S-58183 Linkoping, Sweden

[2] Macquarie Univ, Div Informat & Commun Sci, N Ryde, NSW 2109, Australia

[3] Univ Calif San Diego, Dept Elect & Comp Engn, La Jolla, CA 92093 USA

来源：

APPLIED PHYSICS LETTERS | 2001年 / 78卷 / 25期

关键词：

D O I：

10.1063/1.1380244

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Raman measurements in backscattering configuration are employed to characterize the effect of nitrogen on the structural properties of a GaNxP1-x alloy with x less than or equal to3 %. The following effects of N incorporation on the vibrational spectra of GaNP are observed. First, frequencies of GaP-like and GaN-like longitudinal optical phonons exhibit strong compositional dependence, due to a combined effect of alloying and biaxial strain. Second, a dramatic quenching of two-phonon Raman scattering and an emergence of zone-edge GaP-like vibrations are observed. These effects are tentatively attributed to a local distortion of the GaNP lattice and/or compositional disorder in the alloy. (C) 2001 American Institute of Physics.

引用

页码：3959 / 3961

页数：3

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