Electrical transport in Nb/Cu multilayers |
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| Authors: | P. Seng R. Tidecks K. Samwer G. Yu. Logvenov V. A. Oboznov |
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| Affiliation: | 1. Lehrstuhl für Experimentalphysik I, Universit?t Augsburg, Memminger Str. 6, D-86135, Augsburg, Germany
2. Institute of Solid State Physics, Russian Academy of Sciences, 142432, Chernogolovka, Moscow District, Russia
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| Abstract: | The longitudinal resistance,R xx , the Hall resistance,R xy , and the critical current density,j c , were measured for two Nb/Cu multilayers with different thickness of the Cu layers. The magnetic field was applied perpendicular to the layers. A peak-like anomaly ofR xy , accompanied by a sign reversal, is interpreted using a phenomenological model. The temperature dependence ofj c (T)=j c0 (1−T/T c0 )2/T 5/2 coincides with the theory of Aslamazov, D'yachkov, and Lempitskii. |
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