Magnetic anisotropy of alloys of terbium with yttrium and gadolinium

Journal Article · Thu Nov 01 04:00:00 EST 1979 · Sov. Phys. - JETP (Engl. Transl.); (United States)

OSTI ID:5418258

Nikitin, S A; Arutyunian, N P

The nature of the magnetic anisotropy of terbium-yttrium and terbium-gadolinium alloys is investigated. The single-ion magnetic anisotropy constant K/sup 0//sub 2/ at 4.2 K and the magnetic anisotropy constant in the basal plane K/sup 6//sub 6/ of these alloys are measured in the temperature interval 78--190 K. Anomalies are observed in the concentration dependence of K/sup 0//sub 2/ in Tb/sub x/Y/sub 1-x/ alloys in the interval x=0.3--0.5, and a nonlinear concentration dependence of K/sup 0//sub 2/ is observed in the Tb/sub x/Gd/sub 1-x/ alloys. An analysis of the experimental data indicates predominance of the single-ion crystal anisotropy and the presence of a smaller contribution due to anisotropic exchange. It is established that the dependence of K/sup 6//sub 6/ on the relative magnetization and on the concentration can be described by the single-ion mechanism of the interaction of the orbital angular momentum with the crystal lattice field.

• Research Organization: Moscow State University
• OSTI ID: 5418258
• Journal Information: Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 50:5; ISSN SPHJA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
ANISOTROPY
CRYSTAL FIELD
GADOLINIUM ALLOYS
GADOLINIUM BASE ALLOYS
LOW TEMPERATURE
MAGNETIZATION
RARE EARTH ALLOYS
TERBIUM ALLOYS
YTTRIUM ALLOYS
YTTRIUM BASE ALLOYS