Abstract
A technique of thermobaric quenching has been developed at the Institute of Solid State Physics RAS, which made it possible to prepare and study bulk samples of high-pressure phases in a metastable state at ambient pressure. The paper briefly discusses results of recent neutron scattering investigations of the crystal structure and lattice dynamics of high-pressure phases and forms of various alloys and compounds, such as the bulk amorphous alloys Ga-Sb, GaSb-Ge, Zn-Sb, Al-Ge, amorphous ice and metal hydrides TiH, Mn-H, PdH and NiH.
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