Spin controlled nanomechanics induced by single-electron tunneling

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.

5 pages, 3 figures

References in corpus (5)

• Spin Transfer Torques
• Quantum Dot as a Spin--Current Diode
• Electrically Tunable Spin Polarization in a Carbon-Nanotube Spin Diode
• Electronic Aharonov-Bohm Effect Induced by Quantum Vibrations
• Efficient readout of micromechanical resonator arrays in ambient conditions

Cited by in corpus (8)

• Ground-state cooling of a carbon nanomechanical resonator by spin-polarized current
• Control of vibrational states by spin-polarized transport in a carbon nanotube resonator
• Magnetic effects on nonlinear mechanical properties of a suspended carbon nanotube
• Charge-vibration interaction effects in normal-superconductor quantum dots
• Spintromechanics of a Magnetic Nanoshuttle
• Kondo Force in Shuttling Devices: Dynamical Probe for a Kondo Cloud
• Electronic spin working mechanically
• Self-sustained oscillations in nanoelectromechanical systems induced by Kondo resonance