Effect of local environment on the magnetic state of cerium in (Ce sub 1 minus c Gd sub c )Rh sub 2
Journal Article
·
· Physical Review, B: Condensed Matter; (USA)
- Department of Physics, King Fahd University of Petroleum and Minerals, Dhahran (Saudi Arabia)
We have investigated the cubic Laves-phase compounds (Ce{sub 1{minus}{ital c}}Gd{sub {ital c}})Rh{sub 2} across the entire concentration range by means of magnetic measurements and lattice-parameter studies. The magnetic data show that only those cerium atoms having at least three nearest-neighbor gadolinium atoms are magnetic and in the ordered state they couple antiparallel to the gadolinium sublattice. With use of the Ruderman-Kittel-Kasuya-Yosida model and the lattice-parameter data, a value of 0.58 eV is obtained for the effective exchange integral. The x-ray data do not show the change of valency for cerium across the series.
- OSTI ID:
- 6337583
- Journal Information:
- Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 42:7; ISSN PRBMD; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
CERIUM COMPOUNDS
CURIE POINT
GADOLINIUM COMPOUNDS
LATTICE PARAMETERS
LAVES PHASES
MAGNETIC PROPERTIES
PHYSICAL PROPERTIES
QUANTITY RATIO
RARE EARTH COMPOUNDS
REFRACTORY METAL COMPOUNDS
RHODIUM COMPOUNDS
SPECTRA
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
X-RAY SPECTRA
360104* -- Metals & Alloys-- Physical Properties
CERIUM COMPOUNDS
CURIE POINT
GADOLINIUM COMPOUNDS
LATTICE PARAMETERS
LAVES PHASES
MAGNETIC PROPERTIES
PHYSICAL PROPERTIES
QUANTITY RATIO
RARE EARTH COMPOUNDS
REFRACTORY METAL COMPOUNDS
RHODIUM COMPOUNDS
SPECTRA
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
X-RAY SPECTRA