physica status solidi (b)

Cover image for Vol. 254 Issue 7

Editor: Stefan Hildebrandt (Editor-in-Chief), Sabine Bahrs (Deputy Editor)

Online ISSN: 1521-3951

Associated Title(s): physica status solidi (a), physica status solidi (c), physica status solidi (RRL) - Rapid Research Letters

244_01/2007Raman study of β-Sr0.33V2O5 micro-crystals under high pressure

The cover picture of the current issue relates to the article by A. G. Kontos et al. [1]. The authors study the phonon dynamics of the strontium vanadium oxide bronze β-Sr0.33V2O5 by Raman spectroscopy at different temperatures under high pressure up to 5.7 GPa. The material, which undergoes a metal–insulator phase transition at TMI ≈ 165 K associated with charge ordering, consists of a V2O5 framework of three kinds of infinite double chains along the b-axis with three different sites, V1, V2 and V3, for vanadium atoms in six-fold octahedral and five-fold coordination, respectively. The Sr cations are located at the sites in the tunnel formed by the V2O5 framework.

The corresponding author Yannis S. Raptis is Associate Pro- fessor at the Physics Department of the National Technical University of Athens (NTUA). His research interests include the study of optical and lattice-dynamic properties of materials and their pressure dependence.

The article is a presentation from the 12th International Conference on High Pressure Semiconductor Physics (HPSP-12)held in Barcelona, Spain, 31 July–3 August 2006 whose proceedings are published in this issue of physica status solidi (b).

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