THEORY OF SOLID He$sup 4$

Journal Article · Mon May 01 04:00:00 EDT 1961 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.122.726· OSTI ID:4022336

Goldstein, L

Using a phenomenological approach, it is shown first that solid He/sup 4/ in equilibrium with liquid He/sup 4/ II along the phase separation line, as well as at pressures somewhat above the melting pressure, should have anomalous thermal properties over a finite temperature range or, at least, at isolated temperatures. Such a behavior of the solid results from a correlation of thermodynamic character of its thermal properties with those of the anomalous liquid. The predicted anomalies of the solid will then be effectively verified in terms of rigorous thermodynamics and somewhat incomplete data available on liquid and solid He4 along the melting line over a finite temperature interval. A specific anomaly of the melting pressure consisting in a shallow temperature minimum will be predicted at low temperatures, where both the liquid and solid phases are assumed to exhibit normal static thermal properties. The persistence of the anomalous equilibrium properties of liqdid He/sup 4/ II on solidification will be discussed qualitatively as suggesting a similar origin of these anomalies in both phases, such a situation having been shown previously to exist with respect to the thermal anomalies of liquid and solid He/sup 3/. (auth)

• Research Organization: Los Alamos Scientific Lab., N. Mex.
• NSA Number: NSA-15-017418
• OSTI ID: 4022336
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 122; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALLOTROPY
HELIUM 3
HELIUM 4
HELIUM II
LIQUIDS
LOW TEMPERATURE
MELTING
PHYSICS
PRESSURE
SOLIDIFICATION
SOLIDS
TEMPERATURE
THERMODYNAMICS