Elecromagnetic generation and detection of dc/ac spin current
Chia-Ren Hu
Abstract
It is shown that in a heterostructure where screening is eliminated, the Ampére-Maxwell law of electrodynamics implies that a dc or ac spinomotive force can be inudced with a time rate of change of a transverse electric field, and the magnetic analog of Ampére law implies that a dc or ac spin current can generate a transverse electric field at the same frequency outside the spin-current channel. Both effects are quite weak but may be of some usefulness.
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