Phys. Rev. B 70, 113202 (2004) - Raman scattering in hexagonal InN under high pressure

Raman scattering in hexagonal InN under high pressure

C. Pinquier, F. Demangeot, J. Frandon, J. W. Pomeroy, M. Kuball, H. Hubel, N. W. A. van Uden, D. J. Dunstan, O. Briot, B. Maleyre, S. Ruffenach, and B. Gil

Phys. Rev. B 70, 113202 – Published 17 September 2004

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 Grüneisen 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.

Received 19 March 2004

DOI:https://doi.org/10.1103/PhysRevB.70.113202

©2004 American Physical Society

Authors & Affiliations

C. Pinquier, F. Demangeot, and J. Frandon

Laboratoire de Physique des Solides, UMR 5477, IRSAMC, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex 4, France

J. W. Pomeroy and M. Kuball

H. H. Wills Physics Laboratory, University of Bristol, Bristol BS8 1TL, United Kingdom

H. Hubel, N. W. A. van Uden, and D. J. Dunstan

Physics Department, Queen Marry and Westfield College, University of London, London E1 4NS, United Kingdom

O. Briot, B. Maleyre, S. Ruffenach, and B. Gil

Groupe d’Etude des Semiconducteurs, Université Montpellier II, Case Courrier 074, 34095 Montpellier Cedex 5, France

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand

Issue

Vol. 70, Iss. 11 — 15 September 2004

Reuse & Permissions

Access Options

Author publication services for translation and copyediting assistance advertisement

Sign up to receive regular email alerts from Physical Review B