Propriétés structurales, magnétiques, et electriques de l'oxyfluorure Cr xV 1- xO 2- xF x

The authors have determined the phase diagram of the system Cr _xV _{1- x}O _{2- x}F _x (0 ⩽ x ⩽ 0.20) by magnetic susceptibility and X-ray diffraction measurements. At small chromium concentrations the intermediate phases M ₂ and T of the system Cr _xV _{1- x}O ₂ have been observed. At higher concentration ( x > 0.09) only the rutile phase R is present. The magnetic and transport properties have been determined and discussed.