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Temperature dependent photoemission spectroscopy on lightly-doped sodium tungsten bronze

Paul, Sanhita and Ghosh, Anirudha and Chakraborty, Anirban and Petaccia, Luca and Topwal, D and Sarma, DD and Oishi, S and Raj, Satyabrata (2012) Temperature dependent photoemission spectroscopy on lightly-doped sodium tungsten bronze. In: Solid State Communications, 152 (6). pp. 493-496.

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Official URL: http://dx.doi.org/10.1016/j.ssc.2011.12.045

Abstract

Temperature dependent photoemission studies on lightly doped (x = 0.025) sodium tungsten bronzes, NaxWO3 have been investigated by high-resolution photoemission spectroscopy. The experimental results show evidence for polaron formation at the valence band edge and the photoemission spectra taken in different modes of the electron analyzer suggest that the density of states at the valence band edge gradually moves to other k-points in the Brillouin zone with increasing temperature and explain the dynamics of polarons in the insulating disordered sodium tungsten bronzes. (C) 2012 Elsevier Ltd. All rights reserved.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science.
Keywords: Disordered systems;Insulator;Electronic band structure; Photoelectron spectroscopies
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 25 Apr 2012 08:34
Last Modified: 25 Apr 2012 08:34
URI: http://eprints.iisc.ernet.in/id/eprint/44350

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