Dehybridization of the 4f shell in Si-substituted CeRh/sub 3/B/sub 2/

Journal Article · Mon Dec 01 04:00:00 EST 1986 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.34.8196· OSTI ID:6963184

Malik, S K; Shenoy, G K; Dhar, S K; Paulose, P L; Vijayaraghavan, R

The compound CeRh/sub 3/B/sub 2/ is known to order magnetically with an unusually high Curie temperature (T/sub C/) of 115 K and a low saturation moment of about 0.4..mu../sub B/. We have studied the magnetic behavior of the system CeRh/sub 3/(B/sub 1-//sub x/Si/sub x/)/sub 2/ (0 less than or equal to x less than or equal to 0.5). It is observed that on partial replacement of B by Si an anisotropic lattice expansion takes place and the magnetic moment per Ce ion increases to more than 0.8..mu../sub B/ but at the same time T/sub C/ shows a remarkable decrease by an order of magnitude to 16 K for CeRh/sub 3/BSi. These results suggest that the anomalous behavior of CeRh/sub 3/B/sub 2/ arises because of the Ce 4f hybridization with the neighboring ligands.

• Research Organization: Materials Science and Technology Division, Argonne National Laboratory, Argonne, Illinois 60439-4843
• OSTI ID: 6963184
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 34:11; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
360603 -- Materials-- Properties
ANISOTROPY
BORIDES
BORON COMPOUNDS
CERIUM
CERIUM BORIDES
CERIUM COMPOUNDS
CERIUM SILICIDES
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALS
CURIE POINT
DATA
DIFFRACTION
ELEMENTS
ENERGY LEVELS
EXPANSION
EXPERIMENTAL DATA
F STATES
HEXAGONAL LATTICES
HYBRIDIZATION
INFORMATION
LATTICE PARAMETERS
LIGANDS
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
METALS
NUMERICAL DATA
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
RARE EARTHS
REFRACTORY METAL COMPOUNDS
RHODIUM BORIDES
RHODIUM COMPOUNDS
RHODIUM SILICIDES
SCATTERING
SILICIDES
SILICON COMPOUNDS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
X-RAY DIFFRACTION