Crystal structure, and magnetic and magnetoelastic properties of UGa/sub 2/
Journal Article
·
· Sov. Phys. - JETP (Engl. Transl.); (United States)
OSTI ID:6160100
An investigation was made of the temperature dependences of the crystal lattice parameters, saturation magnetization, paramagnetic susceptibility, coercive force, and magnetostriction of single crystals of the intermetallic compound UGa/sub 2/. In the magnetically ordered state (T/sub c/=125/sup 0/K), the magnetic moment of uranium is 2.71 ..mu../sub B/ and it is due to the partly delocalized 5f electrons. Below T/sub c/, the compound UGa/sub 2/ experiences a strong orthorhombic distortion of the hexagonal lattice which is due to large magnetostrictive strains (lambdaapprox.10/sup -3/). There is a considerable magnetocrystalline anisotropy in the ferromagnetic and paramagnetic states. The uniaxial magnetic anisotropy constant is K/sub 1/=-2 x 10/sup 7/ erg/g and the constant representing anisotropy in the basal plane is K/sub 3/=-0.6 x 10/sup 6/ erg/g.
- Research Organization:
- M. V. Lomonosov State University, Moscow
- OSTI ID:
- 6160100
- Journal Information:
- Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 48:6; ISSN SPHJA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360104* -- Metals & Alloys-- Physical Properties
ACTINIDE ALLOYS
ALLOYS
ANISOTROPY
COERCIVE FORCE
CRYSTAL STRUCTURE
GALLIUM ALLOYS
INTERMETALLIC COMPOUNDS
LATTICE PARAMETERS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETIZATION
MAGNETOSTRICTION
PHYSICAL PROPERTIES
TEMPERATURE DEPENDENCE
URANIUM ALLOYS
360102 -- Metals & Alloys-- Structure & Phase Studies
360104* -- Metals & Alloys-- Physical Properties
ACTINIDE ALLOYS
ALLOYS
ANISOTROPY
COERCIVE FORCE
CRYSTAL STRUCTURE
GALLIUM ALLOYS
INTERMETALLIC COMPOUNDS
LATTICE PARAMETERS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETIZATION
MAGNETOSTRICTION
PHYSICAL PROPERTIES
TEMPERATURE DEPENDENCE
URANIUM ALLOYS