Torsional oscillations of a free-standing semiconductor beam are shown to cause spin-dependent oscillating potentials that spin-polarize an applied charge current in the presence of intentional or disorder scattering potentials. We propose several realizations of mechanical spin generators and manipulators based on this piezo-spintronic effect.
@article{arxiv.0711.4430,
title = {Nanomechanical Spin-Polarizer},
author = {Alexey A. Kovalev and Liviu P. Zârbo and Y. Tserkovnyak and G. E. W. Bauer and Jairo Sinova},
journal= {arXiv preprint arXiv:0711.4430},
year = {2008}
}