Very low temperature properties of liquid helium-3

Journal Article · Sat Nov 01 04:00:00 EST 1975 · J. Low Temp. Phys., v. 21, no. 3/4, pp. 321-345

DOI:https://doi.org/10.1007/BF01141330· OSTI ID:4163395

Goldstein, L

Heat capacity and phase-boundary-line data on liquid $sup 3$He in the few millikelvin temperature range obtained by Wheatley and his co-workers are analyzed within the framework of thermodynamics. The data favor the thermally anomalous disordered high temperature liquid phase to become of normal thermal behavior in its ordered B phase. The latter exhibits entropy decrease on isothermal compression, or its isobaric volume expansion coefficient is positive. At temperatures substantially below the phase-boundary temperatures, the ordered liquid might revert smoothly into a modification of anomalous thermal behavior, i.e., with entropy increase on isothermal compression. This alternation in the thermal behavior of the B phase, on experimental confirmation, could become helpful for a determination of the nature of its dominant thermal excitations in the indicated two temperature ranges, a situation reminiscent of the one existing in liquid $sup 4$He II. Currently available magnetic susceptibility data raise the possibility, at very low temperatures, of further cooling liquid $sup 3$He-B on adiabatic magnetization. (2 tables, 4 figures) (auth)

• Research Organization: Los Alamos Scientific Lab., NM
• Sponsoring Organization: USDOE
• NSA Number: NSA-33-006316
• OSTI ID: 4163395
• Journal Information: J. Low Temp. Phys., v. 21, no. 3/4, pp. 321-345, Journal Name: J. Low Temp. Phys., v. 21, no. 3/4, pp. 321-345; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

*HELIUM 3 B-- THERMODYNAMIC PROPERTIES
640700*
ENTROPY
MAGNETIC FIELDS
N62100* --Physics (Fluid)--Electrofluid Mechanics
PHASE TRANSFORMATIONS
SPECIFIC HEAT