Spin-Controlled Nanomechanics Induced by Single-Electron Tunneling

D. Radic, A. Nordenfelt, A. M. Kadigrobov, R. I. Shekhter, M. Jonson, L. Y. Gorelik

Research output: Contribution to journalArticle

Abstract

We consider dc-electronic transport through a nanowire suspended between normal- and spin-polarized metal leads in the presence of an external magnetic field. We show that magnetomotive coupling between the electrical current through the nanowire and vibrations of the wire may result in self-excitation of mechanical vibrations. The self-excitation mechanism is based on correlations between the occupancy of the quantized electronic energy levels inside the nanowire and the velocity of the nanowire. We derive conditions for the occurrence of the instability and find stable regimes of mechanical oscillations.

Original languageEnglish
Article number236802
Number of pages5
JournalPhysical Review Letters
Volume107
Issue number23
DOIs
Publication statusPublished - 30 Nov 2011

Keywords

  • POLARIZED TRANSPORT
  • CARBON NANOTUBES
  • MAGNETORESISTANCE

Cite this

Radic, D., Nordenfelt, A., Kadigrobov, A. M., Shekhter, R. I., Jonson, M., & Gorelik, L. Y. (2011). Spin-Controlled Nanomechanics Induced by Single-Electron Tunneling. Physical Review Letters, 107(23), [236802]. https://doi.org/10.1103/PhysRevLett.107.236802
Radic, D. ; Nordenfelt, A. ; Kadigrobov, A. M. ; Shekhter, R. I. ; Jonson, M. ; Gorelik, L. Y. / Spin-Controlled Nanomechanics Induced by Single-Electron Tunneling. In: Physical Review Letters. 2011 ; Vol. 107, No. 23.
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Radic, D, Nordenfelt, A, Kadigrobov, AM, Shekhter, RI, Jonson, M & Gorelik, LY 2011, 'Spin-Controlled Nanomechanics Induced by Single-Electron Tunneling', Physical Review Letters, vol. 107, no. 23, 236802. https://doi.org/10.1103/PhysRevLett.107.236802

Spin-Controlled Nanomechanics Induced by Single-Electron Tunneling. / Radic, D.; Nordenfelt, A.; Kadigrobov, A. M.; Shekhter, R. I.; Jonson, M.; Gorelik, L. Y.

In: Physical Review Letters, Vol. 107, No. 23, 236802, 30.11.2011.

Research output: Contribution to journalArticle

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T1 - Spin-Controlled Nanomechanics Induced by Single-Electron Tunneling

AU - Radic, D.

AU - Nordenfelt, A.

AU - Kadigrobov, A. M.

AU - Shekhter, R. I.

AU - Jonson, M.

AU - Gorelik, L. Y.

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N2 - We consider dc-electronic transport through a nanowire suspended between normal- and spin-polarized metal leads in the presence of an external magnetic field. We show that magnetomotive coupling between the electrical current through the nanowire and vibrations of the wire may result in self-excitation of mechanical vibrations. The self-excitation mechanism is based on correlations between the occupancy of the quantized electronic energy levels inside the nanowire and the velocity of the nanowire. We derive conditions for the occurrence of the instability and find stable regimes of mechanical oscillations.

AB - We consider dc-electronic transport through a nanowire suspended between normal- and spin-polarized metal leads in the presence of an external magnetic field. We show that magnetomotive coupling between the electrical current through the nanowire and vibrations of the wire may result in self-excitation of mechanical vibrations. The self-excitation mechanism is based on correlations between the occupancy of the quantized electronic energy levels inside the nanowire and the velocity of the nanowire. We derive conditions for the occurrence of the instability and find stable regimes of mechanical oscillations.

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KW - CARBON NANOTUBES

KW - MAGNETORESISTANCE

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Radic D, Nordenfelt A, Kadigrobov AM, Shekhter RI, Jonson M, Gorelik LY. Spin-Controlled Nanomechanics Induced by Single-Electron Tunneling. Physical Review Letters. 2011 Nov 30;107(23). 236802. https://doi.org/10.1103/PhysRevLett.107.236802