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Electronic transport in mesoscopic superconductor/2D electron gas junctions in strong magnetic field

  • Proceedings of the International Symposium “Low-Dimensional Systems and Surfaces” (LDS-2008), Proceedings of the International Symposium “Orderings in Minerals and Alloys” (OMA-11) and Proceedings of the International Symposium “Order, Disorder,
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Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

The hybrid superconductor/2D electron gas (S/2DEG) structures based on InGaAs-InP hetero-junctions with a high-mobility 2D electron gas and superconducting NbN electrodes have been investigated. The electronic transport and current-voltage characteristics of S/2DEG/normal metal (S/2DEG/N) structures in strong perpendicular magnetic fields have been studied. Oscillations in the magnetoresistance of S/2DEG/N structures have been found in strong magnetic fields. It is shown that at bias voltages lower than the superconducting gap the amplitude of oscillations in S/2DEG/N structures significantly exceeds the oscillation amplitude in the reference N/2DEG/N samples. The experimental results can be explained within the quasiclassical theory of magnetotransport in S/2DEG structures developed by N.M. Chtchelkatchev and I.S. Burmistrov (Phys. Rev. B, 2007, vol. 75, 214 510).

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Authors and Affiliations

  1. Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432, Russia

    I. E. Batov

  2. Physikalisches Institut III, Universität Erlangen-Nürnberg, Erlangen, Germany

    I. E. Batov & A. V. Ustinov

  3. Institute of Bio- and Nanosystems (IBN-1) and cni-Center of Nanoelectronic Systems for Information Technology, Research Centre Juelich, Juelich, Germany

    Th. Schaepers & H. Hardtdegen

  4. Landau Institute for Theoretical Physics, ul. Kosygina 2, Moscow, 119334, Russia

    N. M. Chtchelkatchev

  5. University of Twente, Enschede, The Netherlands

    A. A. Golubov

Authors
  1. I. E. Batov
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  2. Th. Schaepers
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  3. N. M. Chtchelkatchev
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  4. A. A. Golubov
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  5. H. Hardtdegen
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  6. A. V. Ustinov
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Corresponding author

Correspondence to I. E. Batov.

Additional information

Original Russian Text © I.E. Batov, Th. Schaepers, N.M. Chtchelkatchev, A.A. Golubov, H. Hardtdegen, A.V. Ustinov, 2009, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2009, Vol. 73, No. 7, pp. 934–936.

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Batov, I.E., Schaepers, T., Chtchelkatchev, N.M. et al. Electronic transport in mesoscopic superconductor/2D electron gas junctions in strong magnetic field. Bull. Russ. Acad. Sci. Phys. 73, 880–882 (2009). https://doi.org/10.3103/S1062873809070053

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  • DOI: https://doi.org/10.3103/S1062873809070053

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