Fermi surface of field-induced ferromagnetic CeSb

Journal Article · Thu May 15 04:00:00 EDT 1986 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.33.6730· OSTI ID:5760390

Norman, M R; Koelling, D D

The Fermi surface of ferromagnetic CeSb is analyzed with use of a model in which the f electrons in the system are treated as localized (unhybridized) j = (5/2), ..mu.. = (5/2) states interacting only weakly with the conduction electrons through electrostatic and exchange interactions. The ordering of the f orbital moments along the (001) easy-magnetization axis breaks the cubic symmetry introducing noncubic contributions to the potential seen by the conduction electrons. Because spin-orbit coupling in the conduction bands proves quite significant, the requisite model includes both the spin-orbit coupling and the polarization effects. The application of the model compares quite favorably with the measured de Haas--van Alphen frequencies except that the calculated polarization splittings, while quite small, are still overly large. It is found that the electron masses have little or no enhancement beyond the electron-phonon enhancement.

• Research Organization: Materials Science and Technology Division, Argonne National Laboratory, Argonne, Illinois 60439
• OSTI ID: 5760390
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 33:10; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ANTIMONY COMPOUNDS
CERIUM COMPOUNDS
COULOMB FIELD
COUPLING
DE HAAS-VAN ALPHEN EFFECT
ELECTRIC FIELDS
ELECTRON-PHONON COUPLING
ENERGY LEVELS
EXCHANGE INTERACTIONS
F STATES
FERMI LEVEL
FERROMAGNETIC MATERIALS
INTERACTIONS
INTERMEDIATE COUPLING
L-S COUPLING
MAGNETIC MATERIALS
MATERIALS
MATHEMATICAL MODELS
NUCLEAR MODELS
POLARIZATION
RARE EARTH COMPOUNDS
SYMMETRY BREAKING
WEAK-COUPLING MODEL