Mechanical generation of spin current

Mechanical generation of spin current

Spin current, a flow of spins, is a key concept in the field of spintronics. It is generated by using angular momentum conversion among magnetic angular momentum due to magnetization dynamics, photon angular momentum, angular momentum due to orbital motion of electron, and spin angular momentum [1–3]. Meanwhile, mechanical angular momentum carried by condensed matter systems due to macroscopic ...

Generation of spin current by Coulomb drag.

Coulomb drag between two quantum wires is exponentially sensitive to the mismatch of their electronic densities. The application of a magnetic field can compensate this mismatch for electrons of opposite spin directions in different wires. The resulting enhanced momentum transfer leads to the conversion of the charge current in the active wire to the spin current in the passive wire.

Spin-mechanical device for detection and control of spin current by nanomechanical torque

P. Mohanty,1 G. Zolfagharkhani,1 S. Kettemann,2,3 and P. Fulde3 1Department of Physics, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, USA 21. Institut für Theoretische Physik, Jungiusstr. 9, Universität Hamburg, Hamburg 20355, Germany 3Max-Planck Institut für Physik Komplexer Systeme, Nöthnitzer Str. 38, D-01187 Dresden, Germany (Received 29 April 2004; published 2 No...

Spin Polarized Current Generation from Quantum Dots without Magnetic Fields

Spin generation via bulk spin current in three-dimensional topological insulators

To date, spin generation in three-dimensional topological insulators is primarily modelled as a single-surface phenomenon, attributed to the momentum-spin locking on each individual surface. In this article, we propose a mechanism of spin generation where the role of the insulating yet topologically non-trivial bulk becomes explicit: an external electric field creates a transverse pure spin cur...