Author:

Keywords:

stripes, cuprate thin films, magnetoresistance, phase, 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics, 0204 Condensed Matter Physics, 0206 Quantum Physics, General Physics

Abstract:

A large positive magnetoresistance (up to tens of percents) is observed in both underdoped (x < 0.15) and overdoped superconducting La2-xSrxCuO4 (LSCO) epitaxial thin films, at temperatures far above the superconducting critical temperature T-C. In the underdoped regime, this magnetoresistance cannot be described by the Kohler rule and is due to the influence of superconducting fluctuations. On the other hand, in the overdoped regime, the Kohler rule does not seem to be violated.