Eur. Phys. J. D (2013) 67: 8
https://doi.org/10.1140/epjd/e2012-30336-5

Regular Article

Predissociation linewidths in the spectrum of gallium nitride

¹ School of Computing Science, University of Glasgow, Glasgow G12 8QQ, UK
² Department of Chemistry, University of Hong Kong, Hong Kong, P.R. China

^a e-mail: mjj@dcs.gla.ac.uk

Received: 28 May 2012
Received in final form: 19 October 2012
Published online: 31 January 2013

Abstract

Predissociation of the rotationless vibrational states supported in the potentials of the ³Π(II) and ³Π(III) electronic states of gallium nitride is investigated. The linewidths for predissociation caused by spin-orbit interactions of arbitrarily chosen strength between the ³Π(II) state and the ⁵Σ⁻(I) state, between the ³Π(III) state and the ⁵Σ⁻(I) state and between the ³Π(II) state and the ⁵Π(I) state are calculated by the semiclassical method to provide data for the purpose of determining the interaction strengths by comparison of the calculated linewidths with experimentally measured values.