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Vibrational properties of hexagonal LiBC: Infrared and Raman spectroscopy

J. Hlinka·V. Zelezny·I. Gregora·J. Pokorny·A. M. Fogg·J. B. Claridge·G. R. Darling·M. J. Rosseinsky
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Abstract

The paper presents infrared reflectivity and micro-Raman scattering spectra of LiBC powder pellets. The experiment allowed assignment of frequencies of all infrared and Raman active zone center modes. Results are compared with available ab-initio calculations; prediction of large Born effective charges on the nodes of B-C graphene sheets is confirmed.

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J. Hlinka, V. Zelezny, I. Gregora, J. Pokorny, A. M. Fogg, J. B. Claridge, G. R. Darling, M. J. Rosseinsky. 2003-09-04. Vibrational properties of hexagonal LiBC: Infrared and Raman spectroscopy. https://doi.org/10.1103/physrevb.68.220510

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