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Ponderomotive force due to the intrinsic spin in extended fluid and kinetic models
Martin Stefan1, Jens Zamanian, Gert Brodin
1Department of Physics, Umeå University, SE-90187 Umeå, Sweden. martin.stefan@physics.umu.se
Abstract:
In this paper we calculate the contribution to the ponderomotive force in a plasma from the electron spin using a recently developed model. The spin-fluid model used in the present paper contains spin-velocity correlations, in contrast to previous models used for the same purpose. Is its then found that previous terms for the spin-ponderomotive force are recovered, but also that additional terms appear. Furthermore, the results due to the spin-velocity correlations are confirmed using the spin-kinetic theory. The significance of our results is discussed.
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