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The Fano antiresonance effect in the current-voltage characteristics of a nanostructure with a single magnetic impurity

  • Proceedings of the International Symposium “Ordering in Minerals and Alloys” (OMA-14)
  • Published:
Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

A theoretical investigation is performed of quantum coherent electron transport through a nanostructure that contains an impurity ion with an uncompensated magnetic moment. It is shown that the transmission coefficient of spin-polarized electrons has the Fano antiresonance. This effect appears as a result of exchange interaction between the spin of transmitted electron and the spin of impurity ion. It is shown that Fano antiresonance leads to a qualitative modification of the current-voltage characteristic of the structure responsible for the large value of magnetoresistance.

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Authors and Affiliations

  1. Kirensky Institute for Physics, Siberian Branch of Sciences, Krasnoyarsk, 660036, Russia

    V. V. Val’kov & S. V. Aksenov

  2. Siberian Federal University, Krasnoyarsk, 660041, Russia

    S. V. Aksenov

  3. Siberian Aerospace University, Krasnoyarsk, 660014, Russia

    V. V. Val’kov & E. A. Ulanov

Authors
  1. V. V. Val’kov
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  2. S. V. Aksenov
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  3. E. A. Ulanov
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Correspondence to V. V. Val’kov.

Additional information

Original Russian Text © V.V. Val’kov, S.V. Aksenov, E.A. Ulanov, 2012, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2012, Vol. 76, No. 3, pp. 411–416.

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Val’kov, V.V., Aksenov, S.V. & Ulanov, E.A. The Fano antiresonance effect in the current-voltage characteristics of a nanostructure with a single magnetic impurity. Bull. Russ. Acad. Sci. Phys. 76, 362–367 (2012). https://doi.org/10.3103/S1062873812030379

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  • DOI: https://doi.org/10.3103/S1062873812030379

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