title: Pressure-induced orientational glass phase in molecular para-hydrogen.
abstract: We propose a theoretical description of a possible orientational glass transition in solid molecular para-hydrogen and ortho-deuterium under pressure supposing that they are mixtures of J=0 and J=2 states of molecules. The theory uses the basic concepts and methods of standard spin-glass theory. We expect our orientational glass to correspond to the II' phase of the high-pressure hydrogen phase diagram.
authors.affiliation: Institute for High Pressure Physics, Russian Academy of Sciences, Troitsk 142190, Moscow Region, Russia.
authors.forename: T I
authors.initials: TI
authors.lastname: Schelkacheva
authors.forename: E E
authors.initials: EE
authors.lastname: Tareyeva
authors.forename: N M
authors.initials: NM
authors.lastname: Chtchelkatchev