Abstract

The effect of spin-up and spin-down exchange interaction on electron acceleration by a surface plasma wave (SPW) propagating in magnetized quantum plasma has been studied. The SPW was excited over the metal–vacuum interface with maximum amplitude at the interface. The effective dielectric constant was evaluated, considering the effects of quantum Bohm potential, degenerate Fermi pressure, and electron spin. The externally applied magnetic field perturbed the densities of the oppositely spinning electrons, which resulted in spin polarization. The dispersion relation and energy exchange mechanism for the electron acceleration was built, incorporating the effects of spin polarization in the wave–plasma interaction. The energy gain was found to increase with the spin polarization.

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