Abstract
A theoretical study analysing the effects of spin- polarization resulting from the difference in concentration of the oppositely spinning electrons on the filamentation instability of an intense laser beam propagating in magnetized quantum plasma. The ponderomotive force has been evaluated taking into account the electron’s Fermi pressure, quantum Bohm potential and electron’s spin. The effective dielectric constant has been calculated. For the filamentaton instability, the dispersion relation has been established and the growth rate has been studied analytically. The spin-polarization is found to enhance the filamentation.
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