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

Journal Article


Abstract


  • Measurements of the in-plane and out-of-plane magnetoresistance in Bi2Sr2CaCu2O8+x single crystals with a critical temperature Tc=93 K are reported for temperatures between Tc 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. © 1996 Plenum Publishing Corporation.

Publication Date


  • 1996

Citation


  • Heine, G., Lang, W., Wang, X. L., & Wang, X. Z. (1996). Study of anisotropic magnetoresistance in the thermodynamic fluctuation regime of single crystals of Bi2Sr2CaCu2O8+x. Journal of Low Temperature Physics, 105(3-4), 945-950. doi:10.1007/BF00768504

Scopus Eid


  • 2-s2.0-0030291661

Start Page


  • 945

End Page


  • 950

Volume


  • 105

Issue


  • 3-4

Abstract


  • Measurements of the in-plane and out-of-plane magnetoresistance in Bi2Sr2CaCu2O8+x single crystals with a critical temperature Tc=93 K are reported for temperatures between Tc 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. © 1996 Plenum Publishing Corporation.

Publication Date


  • 1996

Citation


  • Heine, G., Lang, W., Wang, X. L., & Wang, X. Z. (1996). Study of anisotropic magnetoresistance in the thermodynamic fluctuation regime of single crystals of Bi2Sr2CaCu2O8+x. Journal of Low Temperature Physics, 105(3-4), 945-950. doi:10.1007/BF00768504

Scopus Eid


  • 2-s2.0-0030291661

Start Page


  • 945

End Page


  • 950

Volume


  • 105

Issue


  • 3-4