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The metal-insulator transition in disordered tungsten bronzes. Results of an Anderson-Mott-Hubbard model

Abstract:

To understand the electronic properties - in particular the metal -insulator transition (MIT) - of cubic tungsten bronzes NaxWO3 and NaxTayW1-yO3, a microscopic model incorporating electron interactions and correlated disorder is presented and treated at the mean-field level of unrestricted Hartree-Fock. The conduction band is found to exhibit a pseudogap at the Fermi level for sufficiently large interaction strengths, in agreement with experiment. The pseudogap has a profound effect on local...

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Chemistry, Physical and Theoretical Chem
Role:
Author
Volume:
205
Issue:
1
Pages:
32-42
Publication date:
1996-10-05
DOI:
ISSN:
0022-3093
URN:
uuid:1a2d6a65-5656-4121-8e89-b04be18d7082
Source identifiers:
45350
Local pid:
pubs:45350

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