NMR study of the solidification and melting of /sup 3/He in porous glasses

Journal Article · Mon Sep 01 04:00:00 EDT 1986 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00681704· OSTI ID:6893838

Shimoda, M; Eguchi, K; Hirai, A; Hiroi, M; Mizusaki, T

The P-T phase diagrams of the liquid-solid phase transition of /sup 3/He in three porous glasses with different pore sizes have been determined from spin-lattice relaxation measurements in the temperature range 0.5-4.2 K. The onset of solidification of /sup 3/He in the pores occurs at excess pressure over the bulk phase transition in small pores which takes into account the contribution of the surface energy to the free energy is described and compared with experimental results. The T/sub 1/ relaxation mechanism of /sup 3/He in the pores is found to be due to the surface relaxation when /sup 3/He is in the liquid phase and due to the relaxation of bulk solid /sup 3/He when it is in the solid phase.

• Research Organization: Kyoto Univ., Kyoto
• OSTI ID: 6893838
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 64:5/6; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

640450 -- Fluid Physics-- Superfluidity
656003* -- Condensed Matter Physics-- Interactions between Beams & Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRYSTAL STRUCTURE
CRYSTALS
DIAGRAMS
ENERGY
EVEN-ODD NUCLEI
FLUIDS
FREE ENERGY
GLASS
HELIUM 3
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
MAGNETIC RESONANCE
MATERIALS
MELTING
MICROSTRUCTURE
NMR SPECTRA
NUCLEAR MAGNETIC RESONANCE
NUCLEI
PHASE DIAGRAMS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PORE PRESSURE
POROSITY
POROUS MATERIALS
QUANTUM CRYSTALS
QUANTUM FLUIDS
RELAXATION
RESONANCE
SOLIDIFICATION
SPECTRA
SPIN-LATTICE RELAXATION
STABLE ISOTOPES
THERMODYNAMIC PROPERTIES
ULTRALOW TEMPERATURE