Title: 'Giant' normal state magnetoresistances of Bi2Sr2CaCu2O8+delta
Authors: Zavaritsky, VN
Vanacken, Johan
Moshchalkov, Victor
Alexandrov, AS #
Issue Date: Dec-2004
Publisher: Springer
Series Title: European physical journal b vol:42 issue:3 pages:367-371
Abstract: Magnetoresistance (MR) of Bi-2212 single crystals with T-c approximate to 87 - 92 K is studied in pulsed magnetic fields tip to 50 T along the c-axis in a wide temperature range. The negative out-of-plane and the positive in-plane MRs are measured in the normal state. Both MRs have similar magnitudes, exceeding any orbital contribution by two orders in magnitude. These are explained as a result of the magnetic pair-breaking of preformed pairs. Resistive upper critical fields H-c2(T) determined from the in- and out-of-plane MRs are about the same. They show non-BCS temperature dependences compatible with the Bose-Einstein condensation field of preformed charged bosons.
ISSN: 1434-6028
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
# (joint) last author

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