Calculation of dispersion relation of collective spin density wave for thin film in alkali metals.
Abstract
Using the transport kinetic equation for spin density in thin film as 2D Fermi liquid, the dynamic spin susceptibility is calculated in terms of the Landau parameters for thin film. The formula allows to estimate the dispersion relation of susceptibility with arbitrary up to quadric term in wave vector . The possibility of experimental determine of Landau's parameters with higher is discussed and compared with others in this field.
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