Magnetic and Moessbauer studies on GdCo/sub 3/B/sub 2/ and DyCo/sub 3/B/sub 2/

Conference · Mon Oct 01 04:00:00 EDT 1984

OSTI ID:6466919

Malik, S K; Umarji, A M; Shenoy, G K

Magnetization and Moessbauer studies have been carried out on GdCo/sub 3/B/sub 2/ and DyCo/sub 3/B/sub 2/. These compounds are magnetically ordered with Curie temperatures of 56/sup 0/ and 21/sup 0/K respectively. The Co atoms are either nonmagnetic or carry a small moment in these compounds. The saturation moment of DyCo/sub 3/B/sub 2/ at 5/sup 0/K is smaller than the Dy/sup 3 +/ free-ion value. From /sup 161/Dy Moessbauer studies, the measured hyperfine magnetic field at the Dy site is also observed to be smaller than the free-ion value. /sup 155/Gd Moessbauer measurements in GdCo/sub 3/B/sub 2/ reveal the presence of large crystalline electric fields at the rare earth site. This causes the moment and the hyperfine field at the Dy site in DyCo/sub 3/B/sub 2/ to be reduced from its free-ion value.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6466919
• Report Number(s): CONF-841184-8; ON: DE85003037
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALLOY SYSTEMS
ALLOYS
BORIDES
BORON COMPOUNDS
COBALT ALLOYS
CRYSTAL FIELD
DYSPROSIUM ALLOYS
GADOLINIUM ALLOYS
HYPERFINE STRUCTURE
MAGNETIZATION
MOESSBAUER EFFECT
RARE EARTH ALLOYS
RARE EARTH COMPOUNDS
TERNARY ALLOY SYSTEMS