Suppression of 2D superconductivity by the magnetic field: Quantum corrections vs. The superconductor-insulator transition

  • V. F. Gantmakher
  • S. N. Ermolov
  • G. E. Tsydynzhapov
  • A. A. Zhukov
  • T. I. Baturina
Condensed Matter

DOI: 10.1134/1.1587177

Cite this article as:
Gantmakher, V.F., Ermolov, S.N., Tsydynzhapov, G.E. et al. Jetp Lett. (2003) 77: 424. doi:10.1134/1.1587177

Abstract

Magnetotransport of superconducting Nd2−xCexCuO4+y(NdCeCuO) films is studied in the temperature interval 0.3–30 K. The microscopic theory of the quantum corrections to conductivity, both in the Cooper and in the diffusion channels, qualitatively describes the main features of the experiment, including the negative magnetoresistance in the high-field limit. Comparison with the model of the field-induced superconductor-insulator transition is included and a crossover between these two theoretical approaches is discussed.

PACS numbers

74.40.+k 74.20.Mn 74.78.Bz 74.25.Ha 75.70.Ak 

Copyright information

© MAIK "Nauka/Interperiodica" 2003

Authors and Affiliations

  • V. F. Gantmakher
    • 1
  • S. N. Ermolov
    • 1
  • G. E. Tsydynzhapov
    • 1
  • A. A. Zhukov
    • 1
  • T. I. Baturina
    • 2
  1. 1.Institute of Solid State PhysicsRussian Academy of SciencesChernogolovka, Moscow oblastRussia
  2. 2.Institute of Semiconductor Physics, Siberian DivisionRussian Academy of SciencesNovosibirskRussia

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