Magnetotransport and charge density wave instabilities in the quasi-two-dimensional phosphate tungsten bronzes (PO2)4(WO3)2m (m = 4,6,7)

A. Rötger, C. Schlenker, J. Dumas, E. Wang, Z. Teweldemedhin, M. Greenblatt

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13 Scopus citations

Abstract

Electrical resistivity has been measured between 4.2 K and 300 K in fields up to 6 Tesla on the monophosphate tungsten bronzes P4W8O32, P4W12O44 and P4W14O50. These compounds are anisotropic quasi-two-dimensional metals showing several charge density wave instabilities. For m = 4 and m = 6, a large anisotropic magnetoresistance is found in the lowest temperature charge density wave state, as expected, with small carrier pockets left on the Fermi surface by gap openings. For m = 7, several instabilities are found by the transport properties together with a small magnetoresistance. These results are partly consistent with X-ray diffuse scattering studies.

Original languageEnglish (US)
Pages (from-to)2670-2675
Number of pages6
JournalSynthetic Metals
Volume56
Issue number2-3
DOIs
StatePublished - Apr 5 1993

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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