Phys. Rev. B 70, 195301 (2004) [6 pages]Spin-mechanical device for detection and control of spin current by nanomechanical torqueReceived 29 April 2004; published 2 November 2004 We propose a spin-mechanical device to control and detect spin currents by mechanical torque. Our hybrid nanoelectromechanical device, which contains a nanowire with a ferromagnetic-nonmagnetic interface, is designed to measure or induce spin-polarized currents. Since spin carries angular momentum, a spin-flip or spin-transfer process involves a change in angular momentum and hence, a torque, which enables mechanical measurement of spin flips. Conversely, an applied torque can result in spin polarization and spin current. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.70.195301
DOI:
10.1103/PhysRevB.70.195301
PACS:
72.25.Ba, 71.30.+h, 72.15.−v, 73.20.Fz
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