Transport properties and CDW instabilities of the quasi-two-dimensional monophosphate tungsten bronzes (PO2)4(WO3)2m (m = 5)

U. Beierlein; J. Dumas; C. Schlenker; D. Groult; Ph. Labbé; E. Balthes; E. Steep; G. Bonfait

doi:doi:10.1051/jp4:199910100

Numéro		J. Phys. IV France Volume 09, Numéro PR10, December 1999 International Workshop on Electronic Crystals ECRYS-99


Page(s)		Pr10-375 - Pr10-377
DOI		https://doi.org/10.1051/jp4:199910100

International Workshop on Electronic Crystals
ECRYS-99

J. Phys. IV France 09 (1999) Pr10-375-Pr10-377
DOI: 10.1051/jp4:199910100

Transport properties and CDW instabilities of the quasi-two-dimensional monophosphate tungsten bronzes (PO₂)₄(WO₃)_2m (m = 5)

U. Beierlein¹, J. Dumas¹, C. Schlenker¹, D. Groult², Ph. Labbé², E. Balthes³, E. Steep³ and G. Bonfait⁴

¹ LEPES, CNRS, BP. 166, 38042 Grenoble cedex 9, France
² Laboratoire CRISMAT, ISMRA, Université de Caen, 14050 Caen cedex, France
³ HFML, MPI-KFK-CNRS, BP. 166, 38042 Grenoble cedex 9, France
⁴ Dept. Quimica, ITN, 2686 Sacavem codex, Portugal

Abstract
Resistivity and magnetoresistance have been measured on single crystals of the monophosphate tungsten bronzes (PO₂)₄(WO₃)_2m for m=5. The m = 5 compound exists in two structural varieties which lead to different resistivity and magnetoresistance properties. Shubnikov de Haas oscillations with large amplitude are observed in one of the variety. The origin of the observed anomalies in the resistivity vs temperature curves is discussed.