Absence of magnetic field dependence of the cyclotron effective masses in Pd

Conference · Sun Apr 01 04:00:00 EST 1984

OSTI ID:7064382

Joss, W; Hall, L N; Crabtree, G W; Vuillemin, J J

The de Haas-van Alphen effect was used to search for a field dependent many-body enhancement of the cyclotron effective mass in Pd, an effect suggested by the experimentally observed depression of the electronic specific heat by a magnetic field. Several orbits on different sheets of the Fermi surface were studied and showed no field dependence in the mass within experimental error. Furthermore, extensive measurements of the mass on the open hole sheet lead to a KKR-parametrized enhanced density of states which differs from the zero field specific heat value by no more than approximately equal -2% rather than approximately equal -15% as estimated earlier. These measurements imply that the large reduction in the linear term of the specific heat by a magnetic field is not due to a suppression of spin fluctuations, a conclusion supported by more recent specific heat experiments.

• Research Organization: Eidgenoessische Technische Hochschule, Zurich (Switzerland). Lab. fuer Festkoerperphysik; Argonne National Lab., IL (USA); Arizona Univ., Tucson (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 7064382
• Report Number(s): CONF-840842-15; ON: DE84011721
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
656000 -- Condensed Matter Physics
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANGULAR MOMENTUM
DATA
DE HAAS-VAN ALPHEN EFFECT
EFFECTIVE MASS
ELECTRONIC STRUCTURE
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY LEVELS
EXPERIMENTAL DATA
FERMI LEVEL
FERMIONS
INFORMATION
LEPTONS
MAGNETIC FIELDS
MASS
METALS
NUMERICAL DATA
PALLADIUM
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
PLATINUM METALS
SPECIFIC HEAT
SPIN
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENTS
ULTRALOW TEMPERATURE