Ultrasound and hypersound generation of new-type solitons and bisolitons in crystals

It has been shown that the principally new-type solitons and bisolitons are generated during the pulse impact of ultrasound and hypersound on crystal monatomic materials in addition to the known solitons. New-type bisolitons analogous to the bisolitons previously found by an analytical approach have been discovered with the use of the molecular dynamics method. It has been shown that the dispersion curve of these bisolitons is close to the dispersion curve of the conventional solitons. A subsonic compression soliton, the dispersion curve of which crosses the phonon dispersion curve, has been found along with the known supersonic compression soliton. The characteristics of the new-type solitons and bisolitons in uranium and plutonium crystal lattices are presented.