High-Pressure Softening of the Out-of-Plane A2u(Transverse-Optic) Mode of Hexagonal Boron Nitride Induced by Dynamical Buckling

We investigate the highly anisotropic behavior of the in-plane and out-of-plane infrared-active phonons of hexagonal boron nitride by means of infrared reflectivity and absorption measurements under high pressure. Infrared reflectivity spectra at normal incidence on high-quality single crystals show...

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Veröffentlicht in:	Journal of physical chemistry. C 2019-07, Vol.123 (28), p.17491-17497
Hauptverfasser:	Segura, A, Cuscó, R, Taniguchi, T, Watanabe, K, Cassabois, G, Gil, B, Artús, L
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed Matter Materials Science Other Physics
Online-Zugang:	Volltext
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