Localization and Electron–Electron Interaction Effects in p-CuGaTe2

The magnetoconductivity of p-type CuGaTe2, in metallic regime, has been measured at low temperatures in a magnetic field up to 20 T. The experimental data are analyzed in the framework of models that take into account the effect of weak localization and electron–electron interactions. Good agreement of the experimental data with theory is found. From the theoretical fit, both the inelastic and spin–orbit relaxation times are estimated and their dependence on temperature established. La magnetoconductivite du p-CuGaTe2, dans la regime metallique, est mesuree a basses temperatures et a champ magnetique jusqu'a 20 T. Les donnees experimentales sont analysees a partir des modeles qui tiennent compte des effets de faible localisation et des interactions electron–electron. Un bon accord avec la theorie est obtenu. A partir des fits, les temps de relaxation relatifs aux diffusions inelastiques et spin–orbite sont determines et leur dependence en temperature etablies.