Transport properties of very overdoped nonsuperconducting Bi2Sr2CuO6+d thin films

Abstract

The transport properties, resistance, Hall effect, and low T magnetoresistance for very oxygen overdoped nonsuperconducting Bi2Sr2CuO6+d (Bi2201) thin films are reported. From 20 to 300K, the temperature dependence of the resistance is well described by a law of the form a+bT4/3, theoretically predicted to occur in the presence of ferromagnetic fluctuations. In addition, this prediction is reinforced by the analysis of the transverse and the longitudinal low T magnetoresistance. Interestingly, the presence of a weak disorder causing low T electronic localization allows us to evidence very short diffusion lengths, as observed in other systems with ferromagnetic fluctuations.

8 pages 8 figures

References in corpus (7)

• Competing ferromagnetism in high temperature copper oxide superconductors
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• Quasiparticle interference and charge order in a heavily overdoped non-superconducting cuprate
• Influence of Disorder on the Hall Effect in Bi${}_2$Sr${}_2$CuO${}_{6+\delta }$
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Cited by in corpus (2)

• Persistence of vortexlike phase fluctuations in underdoped to heavily overdoped Bi-2201 cuprates
• Incommensurate Antiferromagnetic Order in the Fe-substituted Bi-2201 Cuprate in the Heavily Overdoped Regime