Prospects for neutron spectrometry of new-type bound multiphonon solitons and bisolitons generated by ultrasound and hypersound

It has been shown using the molecular dynamics method that new-type solitons and bisolitons are generated under the action of pulsed of ultrasound and hypersound on the crystalline single-atom materials. The dispersion curve of new-type bisolitons adjoins the dispersion curve of conventional solitons. A subsonic compression soliton is found, the dispersion curve of which intersects the phonon dispersion curve. Nuclei of new phases are generated under the inelastic collision of solitons in the fcc and hcp crystal systems at the early stage of structural phase transitions. The solitons of the new undulator type, which generate nuclei, are found. Characteristics of solitons and bisolitons in crystal lattices of uranium and plutonium are presented.