Valence state of Ce and the magnetism in CeRh/sub 3/B/sub 2/

Journal Article · Mon Apr 01 04:00:00 EST 1985 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.31.4728· OSTI ID:6715371

Malik, S K; Umarji, A M; Shenoy, G K; Montano, P A; Reeves, M E

The compound CeRh/sub 3/B/sub 2/ orders magnetically with a high Curie temperature (T/sub C/) of 115 K but with a low moment of only 0.4 ..mu../sub B/. L/sub III/ absorption-edge measurements show a dominant absorption peak at the energy corresponding to trivalent cerium. Magnetic studies on the compounds Ce(Rh/sub 1-x/T/sub x/)/sub 3/B/sub 2/ with T = Ru and Os reveal that the magnetic state is very rapidly broken up with the replacement of Rh by Ru and Os. These results, along with the observation of a high T/sub C/ in CeRh/sub 3/B/sub 2/, suggest that magnetism in this compound arises from a strong hybridization of nearly localized or slightly delocalized Ce 4f electrons with conduction electrons. The small moment may be due to a Kondo-type interaction coupled with crystal-field effects. 14 references, 4 figures.

• Research Organization: Argonne National Lab., IL
• DOE Contract Number: AC02-76ER01198
• OSTI ID: 6715371
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 31:7; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ABSORPTION SPECTRA
BORIDES
BORON COMPOUNDS
CERIUM BORIDES
CERIUM COMPOUNDS
CURIE POINT
DATA
ELECTRONIC STRUCTURE
EXPERIMENTAL DATA
HYBRIDIZATION
INFORMATION
L SHELL
MAGNETIC MOMENTS
MAGNETISM
NUMERICAL DATA
OSMIUM BORIDES
OSMIUM COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
REFRACTORY METAL COMPOUNDS
RHODIUM BORIDES
RHODIUM COMPOUNDS
RUTHENIUM BORIDES
RUTHENIUM COMPOUNDS
SPECTRA
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
X-RAY SPECTRA