Observation of the magnetic field dependence of the cyclotron mass in the Kondo lattice CeB/sub 6/

Journal Article · Mon Oct 05 04:00:00 EDT 1987 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.59.1609· OSTI ID:5816609

Joss, W; van Ruitenbeek, J M; Crabtree, G W; Tholence, J L; van Deursen, A P.J.; Fisk, Z

Low-temperature, high-field deHaas--van Alphen measurements are presented which show that the conduction-electron mass in the Kondo lattice CeB/sub 6/ decreases strongly with field. This field dependence is consistent with recent specific-heat results. The geometry of the Fermi surface does not depend on field. Thus we observe a reduction in the many-body enhancement of the electronic density of states at the Fermi energy which is described by a change of the itinerant-electron mass alone; the number of particles and the occupation of states in k space remain unchanged. We argue that CeB/sub 6/ represents a different limit of heavy-fermion behavior as compared to UPt/sub 3/.

• Research Organization: Max-Planck-Institut fuer Festkoerperforschung, Hochfeld-Magnetlabor, 38042 Grenoble Cedex, France
• OSTI ID: 5816609
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 59:14; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
BORIDES
BORON COMPOUNDS
CERIUM BORIDES
CERIUM COMPOUNDS
CYCLOTRON RESONANCE
DE HAAS-VAN ALPHEN EFFECT
EFFECTIVE MASS
ELECTRONIC STRUCTURE
ELEMENTARY PARTICLES
ENERGY LEVELS
FERMI LEVEL
FERMIONS
HEAVY LEPTONS
KONDO EFFECT
LEPTONS
MASS
POSTULATED PARTICLES
RARE EARTH COMPOUNDS
RESONANCE