<title>Regimes of nonlinear transparency for longitudinal-transverse hypersound in a system of resonant paramagnetic impurities</title>

Abstract

Nonlinear propagation of longitudinal-transverse acoustic pulses in the system of resonant paramagnetic impurities is theoretically investigated. It is shown that under domination of transversal pulse component and propagation along external magnetic field is realized a regime of acoustic self-induced transparency. At the opposite limit realized new soliton mode, following by propagation velocity decrease, similar to the case of self-induced transparency. At that, however, populations of quantum Zeeman sublevels stay practically unchanged, and transversal component of the pulse suffer phase modulation.