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THE LATTICE-RELAXATION ENERGY ASSOCIATED WITH SELF-TRAPPING OF A POSITIVE HOLE AND AN EXCITON IN ALKALI-HALIDES

ITOH, N; TANIMURA, K; STONEHAM, AM; HARKER, AH; (1989) THE LATTICE-RELAXATION ENERGY ASSOCIATED WITH SELF-TRAPPING OF A POSITIVE HOLE AND AN EXCITON IN ALKALI-HALIDES. J PHYS-CONDENS MAT , 1 (25) 3911 - 3918. 10.1088/0953-8984/1/25/003. Green open access

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Abstract

The authors have evaluated the upper and lower bounds to the lattice relaxation energy gained on the self-trapping of excitons, using experimental values of transition energies for free and self-trapped excitons and theoretical values for lattice relaxation energies and optical transition energies. The lattice relaxation energy upon self-trapping of an exciton in alkali halides proves to be appreciably larger than that of a self-trapped hole. They discuss the implications for a number of solid state processes including the production mechanism of F and H centres and the desorption of halogen atoms following valence electron excitation.

Type: Article
Title: THE LATTICE-RELAXATION ENERGY ASSOCIATED WITH SELF-TRAPPING OF A POSITIVE HOLE AND AN EXCITON IN ALKALI-HALIDES
Open access status: An open access version is available from UCL Discovery
DOI: 10.1088/0953-8984/1/25/003
Publisher version: http://dx.doi.org/10.1088/0953-8984/1/25/003
Language: English
Additional information: Text made available to UCL Discovery by kind permission of IOP Publishing, 2012
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/162755
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