Crystal fields and magnetic properties of ErH/sub 3/
Journal Article
·
· J. Appl. Phys.; (United States)
Magnetization and magnetic susceptibility measurements have been made in the temperature range 1.3--4.2 K on powdered samples of ErH/sub 3/. The susceptibility exhibits Curie--Weiss behavior from 4.2 K to 2 K, and intercepts the negative temperature axis at theta=1.05 +- 0.05 K, indicating that the material is antiferromagnetic. The low field effective moment is 6.77 +- 0.27 Bohr magnetons per ion. The magnetization exhibits a temperature independent contribution, the slope of which is (5 +- 1.2) x 10/sup -6/ Weber m/kg T. The saturation moment is 3.84 +- 0.15 Bohr magnetons per ion. The results can be qualitatively explained by the effects of crystal fields on the magnetic ions. Using the wave functions and energy level diagrams of Segal and Wallace (Ref. 4), the first excited state is estimated to be 95 K above the ground state.
- Research Organization:
- Lewis Research Center, Cleveland, Ohio 44135
- OSTI ID:
- 5049299
- Journal Information:
- J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 49:3; ISSN JAPIA
- Country of Publication:
- United States
- Language:
- English
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· Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
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Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ANTIFERROMAGNETIC MATERIALS
ANTIFERROMAGNETISM
CRYSTAL FIELD
ENERGY LEVELS
ERBIUM COMPOUNDS
ERBIUM HYDRIDES
EXCHANGE INTERACTIONS
EXCITED STATES
FUNCTIONS
HYDRIDES
HYDROGEN COMPOUNDS
INTERACTIONS
MAGNETIC MATERIALS
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
MAGNETIZATION
MATERIALS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
ULTRALOW TEMPERATURE
WAVE FUNCTIONS
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ANTIFERROMAGNETIC MATERIALS
ANTIFERROMAGNETISM
CRYSTAL FIELD
ENERGY LEVELS
ERBIUM COMPOUNDS
ERBIUM HYDRIDES
EXCHANGE INTERACTIONS
EXCITED STATES
FUNCTIONS
HYDRIDES
HYDROGEN COMPOUNDS
INTERACTIONS
MAGNETIC MATERIALS
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
MAGNETIZATION
MATERIALS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
ULTRALOW TEMPERATURE
WAVE FUNCTIONS