Raman scattering in hexagonal InN under high pressure

C Pinquier, F Demangeot, J Frandon, JW Pomeroy, M Kuball, H Hubel, NWA van Uden, DJ Dunstan, O Briot, B Maleyre, S Ruffenach, B Gil

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

32 Citations (Scopus)

Abstract

The behavior of the E-2 and A(1)(LO) optical phonons of hexagonal indium nitride under hydrostatic pressure was studied using Raman spectroscopy. Linear pressure coefficients and the corresponding Gruneisen parameters for both modes were determined for the wurtzite structure up to 11.6 GPa, close to the starting pressure of the hexagonal to rocksalt phase transition of InN. Raman spectra acquired within the 11.6 to 13.2 GPa pressure range suggest that wurtzite InN undergoes a gradual phase transition, and the reverse transformation exhibits a strong hysteresis effect during the downstroke.
Translated title of the contributionRaman scattering in hexagonal InN under high pressure
Original languageEnglish
Article numberArticle No. 113202
Number of pages4
JournalPhysical Review B: Condensed Matter and Materials Physics
Volume70 (11)
Publication statusPublished - 2004

Bibliographical note

Publisher: American Physical Society

Structured keywords

  • CDTR

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