Remeijer, P.; Steel, S.C.; Jochemsen, R.; Frossati, G.; Goodkind, J.M.
(Физика низких температур, 1997)
The temperature dependence of the pressure at a constant volume in solid ⁴He in the low-density hcp phase has been measured. The measurements are analyzed in terms of a localized vacancy model and the free Bose gas model ...