Influence of the oxygen content on the normal-state Hall angle in YBa2Cu3Oxn films

Abstract

We report on measurements of in-plane resistivity ρab(T) and Hall coefficient RH(T) in c-axis-oriented oxygen-deficient YBa2Cu3Oxn thin films. Independent of the changes induced in RH(T) and ρab(T) by the oxygen depletion, a quadratic temperature dependence is observed for the Hall angle θH. The slope of cotθH versus T2 decreases as the oxygen content xn is reduced and saturates in the Tc(xn)=60 K plateau region. The results are discussed in the framework of the two-dimensional Luttinger liquid theory as proposed by Anderson.