Study of anisotropic magnetoresistance in the thermodynamic fluctuation regime of single crystals of Bi2Sr2CaCu2O8+x

Autor(en)

G. Heine, W. Lang, X.L. Wang, X.Z. Wang

Abstrakt

Measurements of the in-plane and out-of-plane magnetoresistance in Bi2Sr2CaCu2O8+x single crystals with a critical temperature T-c=93 K are reported for temperatures between T-c and 200 K and in magnetic fields up to 13 T. Both the transverse and the longitudinal in-plane magnetoresistance are positive and originate entirely from the suppression of superconducting fluctuations by the magnetic field The longitudinal out-of-plane magnetoresistance is negative at all temperatures and magnetic fields. As possible origins two recent models are discussed, the reduction of the quasiparticle density of states due to condensation into superconducting fluctuations and thermally activated transport over an interplane pseudogap.

Organisation(en)

Elektronische Materialeigenschaften

Journal

Journal of Low Temperature Physics

Band

105

Seiten

945-950

Anzahl der Seiten

6

ISSN

0022-2291

DOI

https://doi.org/10.1007/BF00768504

Publikationsdatum

1996

Peer-reviewed

Ja

ÖFOS 2012

103018 Materialphysik

Schlagwörter

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/8bbe8557-44f9-4840-8b90-af969f50473f