2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/156501We find that the modified sine-Gordon equation belonging to the class of the soliton equations describes the propagation of extremely short transverse acoustic pulses through the low-temperature crystal containing paramagnetic impurities with effective spin S=1/2 in the Voigt geometry case. The features of nonlinear dynamics of strain field and effective spins, which correspond to the different kinds of acoustic solitons, are studied.9 pages, 1 figureExactly Solvable and Integrable SystemsPattern Formation and Solitonstext