Unusual Eu valence and magnetic behavior in Eu/sub x/Rh/sub 3/B/sub 2/
Journal Article
·
· Phys. Rev. Lett.; (United States)
From structural, magnetic, /sup 151/Eu Moessbauer and L/sub III/ absorption-edge studies, it is observed that the valence state of Eu and the magnetism in Eu/sub x/Rh/sub 3/B/sub 2/ (0.65< or =x< or =1) show unusual behavior. The Eu ions change from a predominantly divalent state for x = 1.0 to a combination of divalent and mixed valent states for x<1.0. Curie temperatures and saturation moments decrease with decreasing x. The quadrupole interaction e/sup 2/qQ of 770 +- 10 MHz at the Eu/sup 2 +/ site is the largest observed to date in any Eu compound and can be understood from the unusual atomic arrangement in this structure.
- Research Organization:
- Materials Science and Technology Division, Argonne National Laboratory, Argonne, Illinois 60439
- OSTI ID:
- 5692901
- Journal Information:
- Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 55:3; ISSN PRLTA
- Country of Publication:
- United States
- Language:
- English
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OSTI ID:5693103
Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
BORIDES
BORON COMPOUNDS
CRYSTAL STRUCTURE
CURIE POINT
DATA
ELECTRONIC STRUCTURE
ELEMENTS
EUROPIUM
EUROPIUM BORIDES
EUROPIUM COMPOUNDS
EXPERIMENTAL DATA
INFORMATION
L SHELL
LATTICE PARAMETERS
LOW TEMPERATURE
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETISM
MEDIUM TEMPERATURE
METALS
MOESSBAUER EFFECT
MULTIPOLES
NUMERICAL DATA
PHYSICAL PROPERTIES
QUADRUPOLES
RARE EARTH COMPOUNDS
RARE EARTHS
REFRACTORY METAL COMPOUNDS
RHODIUM BORIDES
RHODIUM COMPOUNDS
SATURATION
SPECTRA
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
ULTRALOW TEMPERATURE
VALENCE
X-RAY SPECTRA
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
BORIDES
BORON COMPOUNDS
CRYSTAL STRUCTURE
CURIE POINT
DATA
ELECTRONIC STRUCTURE
ELEMENTS
EUROPIUM
EUROPIUM BORIDES
EUROPIUM COMPOUNDS
EXPERIMENTAL DATA
INFORMATION
L SHELL
LATTICE PARAMETERS
LOW TEMPERATURE
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETISM
MEDIUM TEMPERATURE
METALS
MOESSBAUER EFFECT
MULTIPOLES
NUMERICAL DATA
PHYSICAL PROPERTIES
QUADRUPOLES
RARE EARTH COMPOUNDS
RARE EARTHS
REFRACTORY METAL COMPOUNDS
RHODIUM BORIDES
RHODIUM COMPOUNDS
SATURATION
SPECTRA
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
ULTRALOW TEMPERATURE
VALENCE
X-RAY SPECTRA