Magnetic-ordering temperatures and direct-exchange integral in the rare-earth terbium--yttrium and terbium--gadolinium alloys

Journal Article · Sun Jul 01 04:00:00 EDT 1979 · Sov. Phys. - JETP (Engl. Transl.); (United States)

OSTI ID:5805250

Nikitin, S A

Measurements were made of the temperatures of the magnetic phase transitions and of the paramagnetic Curie point in single-crystal rare-earth terbium--yttrium and terbium--gadolinium alloys. Concentration intervals with different coefficients of proportionality of the paramagnetic Curie point to the mean square of the spin projection on the total mechanical angular momentum G-bar were observed in these alloys. It is established that the difference between the indirect-exchange integrals in the ferromagnetic and antiferromagnetic states in the rare-earth alloys is a universal function of the spin parameter G-bar. The contributions of the magnetocrystalline interaction and of the indirect exchange interaction to the magnetic ordering temperatures and to the paramagnetic Curie points in terbium--yttrium and terbium--gadolinium alloys are determined.

• Research Organization: Moscow State University
• OSTI ID: 5805250
• Journal Information: Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 50:1; ISSN SPHJA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
CRYSTALS
CURIE POINT
EXCHANGE INTERACTIONS
GADOLINIUM ALLOYS
INTERACTIONS
MONOCRYSTALS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
TERBIUM ALLOYS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
YTTRIUM ALLOYS