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VOLUME 37 (1983) | ISSUE 10 | PAGE 483
Observation of an anomalous magnetoacoustic soliton in KMnF3 crystals
The results of observations of the anomalous propagation of an acoustic pulse in the frequency range between resonances of the nuclear magnetic subsystem in KMnF3 are presented. It is shown that nonlinear propagation at a frequency corresponding to the point of inflection of the magnetoacoustic branch of the spectrum is described by a modified Korteweig-de Vries (KDV) equation.