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Correlations in optical phonon spectra of complex solids.

Fagas, G. and Falko, V. F. and Lambert, C. J. and Gefen, Y. (2000) Correlations in optical phonon spectra of complex solids. Physical Review B, 61. pp. 9851-9854. ISSN 1098-0121

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Abstract

Spectral correlations in the optical phonon spectrum of a solid with a complex unit cell are analyzed using the Wigner-Dyson statistical approach. Despite the fact that all force constants are real, we find that the statistics are predominantly of the GUE type depending on the location within the Brillouin zone of a crystal and the unit cell symmetry. Analytic and numerical results for the crossover from GOE to GUE statistics are presented.

Item Type: Article
Journal or Publication Title: Physical Review B
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 592
Deposited By: Prof Colin J. Lambert
Deposited On: 26 Jul 2007
Refereed?: Yes
Published?: Published
Last Modified: 17 Sep 2013 08:23
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/592

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