Quadrupolar glass state in para-hydrogen and ortho-deuterium under pressure
T. I. Schelkacheva
Institute for High Pressure Physics RAS, 142092 Troitsk, Moscow Reg., Russia
PACS: 61.43.Fs, 62.50.+p, 64.70.-p
Abstract
The main features of the possible quadrupolar glass
state in ortho-deuterium and para-hydrogen under high pressure are
predicted and considered in replica-symmetric approximation in
analogy with glassy behavior of diluted ortho-hydrogen at low
pressures. The quadrupolar model with J = 2 is suggested. The
orientational order and glass regime grow continuously on cooling
just as it is in the case of ortho-para hydrogen mixtures at zero
pressure.