Dielectric constant and microwave conductivity of the vanadium bronze Na0.33V2O5 |
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| Authors: | WJ Gunning AJ Heeger RH Wallis |
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| Institution: | Department of Physics and Laboratory for Reseàrch on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19174, U.S.A.;Laboratoire Central de Recherches, THOMSON-CSF, 91401 Orsay, FRANCE |
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| Abstract: | Measurements of the dielectric constant and microwave conductivity are reported for the vanadium bronze Na0.33V2O5. The dielectric constant is highly anisotropic and very large parallel to the highly conducting direction, while the conductivity is strongly dispersive. The results can be consistently interpreted by considering Na0.33V2O5 as a quasi-one-dimensional conductor in which, at low temperatures, a pseudo-gap opens in the open-electron density of states due to inter-site correlations. |
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