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Magnetization of ballistic quantum dots induced by a linear-polarized microwave field

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  • A. D. Chepelianskii
  • D. L. Shepelyansky

Abstract

On a basis of extensive analytical and numerical studies we show that a linear-polarized microwave field creates a stationary magnetization in mesoscopic ballistic quantum dots with two-dimensional electron gas being at a thermal equilibrium. The magnetization is proportional to a number of electrons in a dot and to a microwave power. Microwave fields of moderate strength create in a one dot of few micron size a magnetization which is by few orders of magnitude larger than a magnetization produced by persistent currents. The effect is weakly dependent on temperature and can be observed with existing experimental techniques. The parallels between this effect and ratchets in asymmetric nanostructures are also discussed. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2007

Suggested Citation

  • A. D. Chepelianskii & D. L. Shepelyansky, 2007. "Magnetization of ballistic quantum dots induced by a linear-polarized microwave field," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 55(3), pages 261-270, February.
    • Handle: RePEc:spr:eurphb:v:55:y:2007:i:3:p:261-270
    DOI: 10.1140/epjb/e2007-00052-4
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