Localization effects in the charge density wave state of the quasi-two-dimensional monophosphate tungsten bronzes (PO2)4(WO3)2m (m = 7, 8, 9)

J. Dumas; C. Hess; C. Schlenker; G. Bonfait; E. Gomez Marin; D. Groult; J. Marcus

doi:10.1007/s100510050108

Localization effects in the charge density wave state of the quasi-two-dimensional monophosphate tungsten bronzes (PO₂)₄(WO₃)_2m (m = 7, 8, 9)

J. Dumas, C. Hess, C. Schlenker, G. Bonfait, E. Gomez Marin, D. Groult, J. Marcus

DF – Departamento de Física

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

The monophosphate tungsten bronzes (PO₂)₄(WO₃)_2m are quasi-two-dimensional conductors which show charge density wave type electronic instabilities. We report electrical resistivity and magnetoresistance measurements down to 0.30 K and in magnetic fields up to 16 T for the m = 7, 8 and 9 members of this family. We show that these compounds exhibit at low temperature an upturn of resistivity and field dependences of the magnetoresistance characteristic of localization effects. We discuss the dimensionality of the regime of localization as m is varied. We show that for m = 7, the regime is quasi-two-dimensional and three-dimensional for m = 8, 9.

Original language	English
Pages (from-to)	73-82
Number of pages	10
Journal	European Physical Journal B
Volume	14
Issue number	1
DOIs	https://doi.org/10.1007/s100510050108
Publication status	Published - 1 Mar 2000

Keywords

71.45.Lr Charge-density-wave systems -
72.15.Gd Galvanomagnetic and other magnetotransport effects

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10.1007/s100510050108

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abstract = "The monophosphate tungsten bronzes (PO2)4(WO3)2m are quasi-two-dimensional conductors which show charge density wave type electronic instabilities. We report electrical resistivity and magnetoresistance measurements down to 0.30 K and in magnetic fields up to 16 T for the m = 7, 8 and 9 members of this family. We show that these compounds exhibit at low temperature an upturn of resistivity and field dependences of the magnetoresistance characteristic of localization effects. We discuss the dimensionality of the regime of localization as m is varied. We show that for m = 7, the regime is quasi-two-dimensional and three-dimensional for m = 8, 9.",

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AU - Dumas, J.

AU - Hess, C.

AU - Schlenker, C.

AU - Bonfait, G.

AU - Marin, E. Gomez

AU - Groult, D.

AU - Marcus, J.

PY - 2000/3/1

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N2 - The monophosphate tungsten bronzes (PO2)4(WO3)2m are quasi-two-dimensional conductors which show charge density wave type electronic instabilities. We report electrical resistivity and magnetoresistance measurements down to 0.30 K and in magnetic fields up to 16 T for the m = 7, 8 and 9 members of this family. We show that these compounds exhibit at low temperature an upturn of resistivity and field dependences of the magnetoresistance characteristic of localization effects. We discuss the dimensionality of the regime of localization as m is varied. We show that for m = 7, the regime is quasi-two-dimensional and three-dimensional for m = 8, 9.

AB - The monophosphate tungsten bronzes (PO2)4(WO3)2m are quasi-two-dimensional conductors which show charge density wave type electronic instabilities. We report electrical resistivity and magnetoresistance measurements down to 0.30 K and in magnetic fields up to 16 T for the m = 7, 8 and 9 members of this family. We show that these compounds exhibit at low temperature an upturn of resistivity and field dependences of the magnetoresistance characteristic of localization effects. We discuss the dimensionality of the regime of localization as m is varied. We show that for m = 7, the regime is quasi-two-dimensional and three-dimensional for m = 8, 9.

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Localization effects in the charge density wave state of the quasi-two-dimensional monophosphate tungsten bronzes (PO₂)₄(WO₃)_2m (m = 7, 8, 9)

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