Magnetic and magnetoelastic properties of the band metamagnet ThCo/sub 5/
We investigated the magnetization of the intermetallic single crystal Th/sub 0.965/Co/sub 5.07/ in strong pulsed magnetic fields up to 320 kOe in the temperature interval 4.2--300 K. From a comparison of the fields of the metamagnetic transition occurring when the Th/sub 0.965/Co/sub 5.07/ single crystal is magnetized either along the hexagonal axis (easy-magnetization direction) or in the basal plane we determined the magnetic-anisotropy constants of the cobalt in two nonequivalent positions in the crystal lattice, and observed that the anisotropy of the cobalt in the 3g sites is substantially larger than the anisotropy of the cobalt in 2c sites. Investigations of the magnetostriction of the Th/sub 0.965/Co/sub 5.07/ single crystal along the easy magnetization axis in the temperature interval 4.2--400 K in pulsed magnetic fields up to 200 kOe, as well as x-ray investigation of the crystal-lattice parameters of the compounds Th/sub 0.965/Co/sub 5.07/ and Th/sub 0.950/Co/sub 5.10/, have made it possible to calculate the constants of the magnetoelastic coupling both within the cobalt subsystems and between two nonequivalent cobalt subsystems. The results are in good agreement with analogous investigations of RCo/sub 2/ compounds, thus confirming that ThCo/sub 5/ and RCo/sub 2/ have like magnetic and magnetoelastic properties and that the magnetism in these compounds is of the band type.
- Research Organization:
- Ural State University
- OSTI ID:
- 5455710
- Journal Information:
- Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 60:6; ISSN SPHJA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Metamagnetic phase transition in Nd{sub 1-x}Tb{sub x}Co{sub 2} compounds
Theoretical study of the metamagnetism in ThCo sub 5
Related Subjects
360104* -- Metals & Alloys-- Physical Properties
ACTINIDE ALLOYS
ALLOYS
ANISOTROPY
COBALT ALLOYS
CRYSTALS
LATTICE PARAMETERS
LOW TEMPERATURE
MAGNETIC PROPERTIES
MAGNETIZATION
MAGNETOSTRICTION
MEDIUM TEMPERATURE
MONOCRYSTALS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
THORIUM ALLOYS
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE