Galvanomagnetic properties and noise in a barely metallic film of V2O3

Clara Grygiel (1) , Alain Pautrat (1) , Pierre Rodiere (2)

1 CRISMAT - Laboratoire de cristallographie et sciences des matériaux
2 NEEL - MagSup - Magnétisme et Supraconductivité

We have measured the magnetotransport properties of a strained metallic V2O3 thin film. Most of the properties are similar to V2O3 single crystals that have been submitted to a large pressure. In addition, the resistance noise analysis indicates that conductivity fluctuations are freezing out at T approximate to 10 K. Examination of a range of measurements leads to the conclusion that spins-configuration fluctuations dominate in the low-temperature regime.

Domaines: Supraconductivité [cond-mat.supr-con]

Clara Grygiel, Alain Pautrat, Pierre Rodiere. Galvanomagnetic properties and noise in a barely metallic film of V2O3. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2009, 79 (23), pp.235111. ⟨10.1103/PhysRevB.79.235111⟩. ⟨hal-00965464⟩