Positive in-plane and negative out-of-plane magnetoresistance in the overdoped high-temperature superconductor Bi2Sr2CaCu2O8 + x

Authors

G. Heine, University of Vienna, Austria
W. Lang, University of Vienna, Austria
Xiaolin Wang, University of WollongongFollow
S. X. Dou, Univeristy of WollongongFollow

Publication Details

This article was originally published as: Heine, G, Lang, W, Wang, XL & Dou, SX, Positive in-plane and negative out-of-plane magnetoresistance in the overdoped high-temperature superconductor Bi2Sr2CaCu2O8 + x, Physical Review B, 1999, 59(17), 11179-11182. Copyright 1999 American Physical Society. The original journal can be found here.

Abstract

The in-plane and out-of-plane magnetoresistances of moderately overdoped Bi₂Sr₂CaCu₂O_8+x single crystals have been studied from T_c+5 K to T_c+100 K with the magnetic field oriented perpendicular and parallel to the current, respectively. The in-plane magnetoresistance is positive, the out-of-plane magnetoresistance negative, and their temperature variations depend on the orientation of the magnetic field. A recent theory for superconducting order parameter fluctuations is extended for the interaction of carrier spins with the magnetic field. The anomalous, anisotropic magnetoresistance can be described well by a unique set of physical parameters, which were found to correspond to estimates from the normal-state transport properties.