This article is cited in 9 papers

CONDENSED MATTER

Dynamics of a longitudinal-and-transverse acoustic wave in a crystal with paramagnetic impurities

A. A. Zabolotskii

Institute of Automation and Electrometry, Siberian Branch of Russian Academy of Sciences, Novosibirsk

Abstract: The evolution of longitudinal-and-transverse acoustic pulses propagating along an external magnetic field through a system of resonant paramagnetic impurities with effective spin $S=1/2$ is studied theoretically. It is shown that, when the group velocities of longitudinal and transverse waves are equal and the impurity concentration is sufficiently small, the initial system of equations is reduced to new evolution equations, which are integrable within the framework of the inverse scattering problem approach. These equations qualitatively describe the new coherent dynamics of acoustic pulses.

PACS: 41.20.Jb, 42.50.md, 43.25.+y

Received: 01.10.2002

 English version: Journal of Experimental and Theoretical Physics Letters, 2002, 76:10, 607–611

Bibliographic databases:

•