Raman scattering studies on single-crystalline bulk AlN under high pressures

MHH Kuball, JM Hayes, AD Prins, NWA van Uden, DJ Dunstan, Shi Ying, JH Edgar

Research output: Contribution to journalArticle (Academic Journal)peer-review

117 Citations (Scopus)

Abstract

We report on the Raman analysis of wurtzite single-crystalline bulk AlN under hydrostatic pressures up to 10 GPa. The pressure dependence of the AlN phonon frequencies was investigated. Mode Grüneisen parameters of 1.39, 1.57, 1.71, 0.93, and 1.26 were determined for the A1 (TO), E1(TO), E2 (high), A1 (LO), and the quasi-longitudinal optical phonons, respectively. Recent theoretical calculations underestimate the pressure-induced frequency shift of the AlN phonons by about 20%-30%. Mode Grüneisen parameters of AlN were compared to those of GaN.
Translated title of the contributionRaman scattering studies on single-crystalline bulk AlN under high pressures
Original languageEnglish
Pages (from-to)724 - 726
Number of pages3
JournalApplied Physics Letters
Volume78 (6)
DOIs
Publication statusPublished - 5 Feb 2001

Bibliographical note

Publisher: American Institute of Physics

Structured keywords

  • CDTR

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