| Particle-hole symmetry and the effect of disorder on the Mott-Hubbard insulator. | |
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MedLine Citation:
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PMID: 11580663 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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The understanding of the interplay of electron correlations and randomness in solids is enhanced by demonstrating that particle-hole ( p-h) symmetry plays a crucial role in determining the effects of disorder on the transport and thermodynamic properties of the half-filled Hubbard Hamiltonian. We show that the low-temperature conductivity decreases with increasing disorder when p-h symmetry is preserved, and shows the opposite behavior, i.e., conductivity increases with increasing disorder, when p-h symmetry is broken. The Mott insulating gap is insensitive to weak disorder when there is p-h symmetry, whereas in its absence the gap diminishes with increasing disorder. |
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Authors:
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P J Denteneer; R T Scalettar; N Trivedi |
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Publication Detail:
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Type: Journal Article Date: 2001-09-18 |
Journal Detail:
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Title: Physical review letters Volume: 87 ISSN: 0031-9007 ISO Abbreviation: Phys. Rev. Lett. Publication Date: 2001 Oct |
Date Detail:
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Created Date: 2001-10-02 Completed Date: 2001-12-04 Revised Date: 2003-10-31 |
Medline Journal Info:
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Nlm Unique ID: 0401141 Medline TA: Phys Rev Lett Country: United States |
Other Details:
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Languages: eng Pagination: 146401 Citation Subset: - |
Affiliation:
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Lorentz Institute, Leiden University, P.O. Box 9506, 2300 RA Leiden, The Netherlands. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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