Electrical resistivity of the quasi-two dimensional diphosphate tungsten bronzes K$_{\rm x}$(P$_2$O$_4$)$_2$(WO$_3)_{2m}$, $m = 8$

J. Dumas; H. Devlin; C. Schlenker; O. Perez

doi:doi:10.1051/jp4:20020367

Issue		J. Phys. IV France Volume 12, Number 9, November 2002


Page(s)		93 - 94
DOI		https://doi.org/10.1051/jp4:20020367

J. Phys. IV France 12 (2002) Pr9-93
DOI: 10.1051/jp4:20020367

Electrical resistivity of the quasi-two dimensional diphosphate tungsten bronzes K $_{\rm x}$ (P ₂O ₄) ₂(WO ₃)_2m, m = 8

J. Dumas¹, H. Devlin¹, C. Schlenker¹ and O. Perez²

¹ Laboratoire d'Études des Propriétés Électroniques des Solides, CNRS, BP. 166, 38042 Grenoble cedex 9, France
² CRISMAT, ISMRA, 14032 Caen cedex, France

Abstract
We report a study of the resistivity as a function of temperature (4 K <T <300 K) of single crystals of the quasi-two dimensional diphosphate tungsten bronzes (DPTBh) K $_{\rm x}$ (P ₂O ₄)₂(WO ₃)_2m m=8 for 1.30 <x <1.55. A change from metallic to non-metallic behavior is observed for x <1.30. The results are discussed in terms of disorder and in relation with available band models.

Electrical resistivity of the quasi-two dimensional diphosphate tungsten bronzes K (P 2O 4) 2(WO 3)2m, m = 8

Electrical resistivity of the quasi-two dimensional diphosphate tungsten bronzes K $_{\rm x}$ (P ₂O ₄) ₂(WO ₃)_2m, m = 8