Fermi surface study of CeSb

Conference · Sat Sep 01 04:00:00 EDT 1984

OSTI ID:6468742

Aoki, H; Crabtree, G W; Joss, W; Hulliger, F

A Fermi surface study of the ferromagnetic phase of CeSb is presented. The ..gamma.. frequency branches arising from the electron surfaces at the X points, three separate frequency branches from the hole surfaces at the GAMMA point and the low frequency branch ..cap alpha.. have been observed. The effective mass ratios are low and range from approx. 0.2 for the ..cap alpha.. branch to approx. 1.0 for the high frequency branch of ..gamma... The low effective mass ratios suggest that the admixture of the conduction states with the f state is small. We have observed a drastic change in the appearance of the dHvA signal at the phase transition between the ferromagnetic and lower field antiferromagnetic phases: The low frequency ..cap alpha.. oscillation suddenly disappears as the crystal enters the antiferromagnetic phase. By utilizing the change in the signal appearance, the transition field strength has been measured as a function of the field direction. The present experimental results, particularly the origin of the ..cap alpha.. oscillation, are discussed in the light of the p-f mixing theory and recent band structure calculations based on localized f orbitals.

• Research Organization: Argonne National Lab., IL (USA); Eidgenoessische Technische Hochschule, Zurich (Switzerland). Lab. fuer Festkoerperphysik
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6468742
• Report Number(s): CONF-841184-6; ON: DE85002532
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
ANTIFERROMAGNETISM
ANTIMONY ALLOYS
CERIUM ALLOYS
EFFECTIVE MASS
ENERGY LEVELS
F STATES
FERMI LEVEL
FERROMAGNETISM
MAGNETISM
MASS
PNICTIDES
RARE EARTH ALLOYS