Electronic band structure and Fermi surfaces of the quasi-two-dimensional monophosphate tungsten bronze, P4W12O44

Paul, S and Ghosh, A and Sato, T and Sarma, DD and Takahashi, T and Wang, E and Greenblatt, M and Raj, S (2014) Electronic band structure and Fermi surfaces of the quasi-two-dimensional monophosphate tungsten bronze, P4W12O44. In: EPL, 105 (4).

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Abstract

The electronic structure of quasi-two-dimensional monophosphate tungsten bronze, P4W12O44, has been investigated by high-resolution angle-resolved photoemission spectroscopy and density functional theoretical calculations. Experimental electron-like bands around Gamma point and Fermi surfaces have similar shapes as predicted by calculations. Fermi surface mapping at different temperatures shows a depletion of density of states at low temperature in certain flat portions of the Fermi surfaces. These flat portions of the Fermi surfaces satisfy the partial nesting condition with incommensurate nesting vectors q(1) and q(2), which leads to the formation of charge density waves in this phosphate tungsten bronzes. The setting up of charge density wave in these bronzes can well explain the anomaly observed in its transport properties. Copyright (C) EPLA, 2014

Item Type:	Journal Article
Publication:	EPL
Publisher:	EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
Additional Information:	Copyright for this article belongs to the EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY, FRANCE
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	13 May 2014 11:31
Last Modified:	13 May 2014 11:31
URI:	http://eprints.iisc.ac.in/id/eprint/48992

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