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- W2007730353 abstract "The influence of the surface roughness on the low energy spin wave properties is treated within a quantized phenomenological spin wave theory. Up to second order in the roughness amplitude, the surface roughness can be replaced for thin films by a non-local scattering Hamiltonian acting in two dimensions. For a surface with a random “mosaic structure”, results are obtained for the self-energy of the magnons, for the density of states g(E), and for the magnetization as function of the temperature T. For rough films, due to the properties of g(E), the magnetization decreases faster with T than for a smooth film of equal thickness.Im Rahmen einer quantisierten phanomenologischen Theorie wird der Einflus der Oberflachenrauhigkeit auf das Spinwellenspektrum dunner Schichten untersucht. In zweiter Ordnung bezuglich der mittleren Amplitude der Rauhigkeit entspricht deren Einflus der Strenung der Spinwellen an einem nichtlokalen Potential in zwei Dimensionen. Fur Schichten, deren Oberflache eine statistische “Mosaikstruktur” aufweist, werden die Selbstencrgie der Magnonen, die Zustandsdichte g(E) und die Abnahme der Magnetisierung mit der Temperatur T berechnet. Bei rauhen Schichten erfolgt diese Abnahme rascher als bei glatten Schichten gleicher Dicke." @default.
- W2007730353 created "2016-06-24" @default.
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- W2007730353 date "1973-01-01" @default.
- W2007730353 modified "2023-09-24" @default.
- W2007730353 title "Spin Wave Spectrum and Magnetization of Magnetic Thin Films with a Rough Surface" @default.
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- W2007730353 doi "https://doi.org/10.1002/pssb.2220550123" @default.
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