Resumen: 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. Idioma: Inglés DOI: 10.1103/PhysRevLett.98.095503 Año: 2007 Publicado en: PHYSICAL REVIEW LETTERS 98, 9 (2007), 095503 [4 pp.] ISSN: 0031-9007 Factor impacto JCR: 6.944 (2007) Categ. JCR: PHYSICS, MULTIDISCIPLINARY rank: 5 / 68 = 0.074 (2007) - Q1 - T1 Tipo y forma: Artículo (Versión definitiva)