Spin contribution to the ponderomotive force in a plasma

Details Spin contribution to the ponderomotive force in a plasma Spin contribution to the ponderomotive force in a plasma

2010-03-26

arxiv.org/abs/1003.5162v2

Physics

Plasma Physics

4 pages, 2 figures, version accepted for publication in Physical Review Letters

Scientific paper

The concept of a ponderomotive force due to the intrinsic spin of electrons is developed. An expression containing both the classical as well as the spin-induced ponderomotive force is derived. The results are used to demonstrate that an electromagnetic pulse can induce a spin-polarized plasma. Furthermore, it is shown that for certain parameters, the nonlinear back-reaction on the electromagnetic pulse from the spin magnetization current can be larger than that from the classical free current. Suitable parameter values for a direct test of this effect are presented.

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