Kavli Affiliate: Mamoru Matsuo
| First 5 Authors: Daigo Oue, Mamoru Matsuo, , ,
| Summary:
We propose a spin transport induced by inertial motion. Our system is
composed of two host media and a narrow vacuum gap in between. One of the hosts
is sliding at a constant speed relative to the other. This mechanical motion
causes the Doppler effect that shifts the density of states and the
nonequilibrium distribution function in the moving medium. Those shifts induce
the difference in the distribution function between the two media and result in
tunnelling spin current. The spin current is calculated from the
Schwinger-Keldysh formalism with a spin tunnelling Hamiltonian. This scheme
does not require either temperature difference, voltage or chemical potential.
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