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Slow electromagneticw waves in tangentially magnetized ferromagnetic films

Research paper by S. V. Grishin, Yu. P. Sharaevskii

Indexed on: 01 Apr '01Published on: 01 Apr '01Published in: Technical Physics



Abstract

Dispersion and energy characteristics of slow volume electromagnetic waves in tangentially magnetized ferromagnetic films are computed in a rigorous manner. For a wave that experiences anomalous dispersion and propagates with the external magnetostatic field, distinguishing features of the energy-flux velocity and the ratio of the electric to the magnetic energy density as functions of the wave number are noted. A marked contrast between these results and those obtained within the magnetostatic approximation is revealed for a wide range of wave numbers.