Abstract
AbstractThe mechanism of excitation and propagation of spin waves in Ge: Mn thin films with different nominal manganese concentrations (2, 4, and 8 at % Mn) with percolation magnetic ordering is explored. Concentration dependencies of Curie temperature T _C( n ) and spin wave rigidity D ( n ) are determined, which enables to find the index of correlation distance. An exotic percolation magnetic state of samples of Ge: Mn thin films is confirmed by rectifying experimental dependences D ( n ) and D / T _C( n ) in coordinates accepted in the percolation theory.
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