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Phys. Rev. Lett. 98, 095503 (2007) [4 pages]

Vibrational Properties of Hexagonal Boron Nitride: Inelastic X-Ray Scattering and Ab Initio Calculations

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J. Serrano1,*, A. Bosak1, R. Arenal2, M. Krisch1, K. Watanabe3, T. Taniguchi3, H. Kanda3, A. Rubio4,5, and L. Wirtz6,5
1European Synchrotron Radiation Facility, Boîte Postale 220, 38043 Grenoble, France
2Materials Sciences Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
3National Institute for Materials Science, 1-1 Namiki, Tsukuba, 305-0044, Japan
4Departamento de Física de Materiales, Facultad de Ciencias Químicas, Universidad del País Vasco, Centro Mixto CSIC-UPV/EHU and Donostia International Physics Center, E-20018 San Sebastián, Basque Country, Spain
5European Theoretical Spectroscopy Facility (ETSF), E-20018 San Sebastián, Basque Country, Spain
6IEMN (CNRS-UMR 8520), Boîte Postale 60069, 59652 Villeneuve dAscq Cedex, France

Received 14 December 2006; published 1 March 2007

The phonon dispersion relations of bulk hexagonal boron nitride have been determined from inelastic x-ray scattering measurements and analyzed by ab initio calculations. Experimental data and calculations show an outstanding agreement and reconcile the controversies raised by recent experimental data obtained by electron-energy loss spectroscopy and second-order Raman scattering.

© 2007 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.98.095503
DOI:
10.1103/PhysRevLett.98.095503
PACS:
63.20.Dj, 61.10.Eq, 63.10.+a, 71.15.Mb

*Electronic address: jserrano@esrf.fr

 
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