Moessbauer effect in Eu and EuO to pressures of 31 GPa
Conference
·
OSTI ID:6791704
We report /sup 151/Eu Moessbauer Effect measurements on Eu metal in the range 4 < T < 300 K and P < 12.5 GPa and on EuO for P < 31 GPa. Hydrostatic pressures using argon as the pressurizing medium were obtained in a simple Merrill-Bassett-type diamond anvil cell. Pressures were measured by the ruby fluorescence method. The 160-mCi /sup 151/SmF/sub 3/ source and the absorbers were held at the same temperature. The small sample size (about 8 ..mu..g) and rather large source diameter necessitated counting times of about one day per datum. Raw f-values of about 15% near 100 K reflected the efficient collimation of the 90 Ta 10 W gasket used/1/. 7 refs., 4 figs.
- Research Organization:
- Los Alamos National Lab., NM (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6791704
- Report Number(s):
- LA-UR-88-2560; CONF-8805189-2; ON: DE88017028
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
656002* -- Condensed Matter Physics-- General Techniques in Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CHALCOGENIDES
CURIE POINT
ELEMENTS
EUROPIUM
EUROPIUM COMPOUNDS
EUROPIUM OXIDES
ISOMER SHIFT
METALS
MOESSBAUER EFFECT
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PRESSURE EFFECTS
RARE EARTH COMPOUNDS
RARE EARTHS
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CHALCOGENIDES
CURIE POINT
ELEMENTS
EUROPIUM
EUROPIUM COMPOUNDS
EUROPIUM OXIDES
ISOMER SHIFT
METALS
MOESSBAUER EFFECT
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PRESSURE EFFECTS
RARE EARTH COMPOUNDS
RARE EARTHS
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE