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C-axis negative magnetoresistance and upper critical field of Bi2Sr2CaCu2O8 | | V.N. Zavaritsky
; M. Springford
; A.S. Alexandrov
; | | Date: |
6 Jun 2000 | | Subject: | Superconductivity | cond-mat.supr-con | | Affiliation: | 1 and 2), M. Springford , A.S. Alexandrov ( H.H. Wills Physics Laboratory, University of Bristol, United Kingdom Kapitza Institute for Physical Problems, Russia Department of Physics, Loughborough University, United Kingdom | | Abstract: | The out-of-plane resistance and the resistive upper critical field of BSCCO-2212 single crystals with Tc=91-93 K have been measured in magnetic fields up to 50 T over a wide temperature range. The results are characterised by a positive linear magnetoresistance in the superconducting state and a negative linear magnetoresistance in the normal state. The zero field normal state c-axis resistance, the negative linear normal state magnetoresistance, and the divergent upper critical field Hc2(T)are explained in the framework of the bipolaron theory of superconductivity. | | Source: | arXiv, cond-mat/0006089 | | Services: | Forum | Review | PDF | Favorites | |
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