Affordable Access

Anomalous Metal-Insulator Transition in Filled Skutterudite CeOs_4Sb_<12>

Authors
Publication Date
Source
Saitama University Cyber Repository of Academic Resources
Keywords
  • Filled-Skutterudite Compounds
  • Ceos_4Sb_<12>
  • Field Induced Metal-Insulator Transition
External links

Abstract

Anomalous metal-insulator transition observed in filled skutterudite CeOs4Sb12 is investigated by constructing the effective tight-binding model with the Coulomb repulsion between f electrons. By using the mean field approximation, magnetic susceptibilities are calculated and the phase diagram is obtained. When the band structure has a semimetallic character with small electron and hole pockets at г and H points, a spin density wave transition with an ordering vector Q = (1, 0, 0) occurs due to the nesting property of the Fermi surfaces. Magnetic field enhances this phase in accord with the experiments.

There are no comments yet on this publication. Be the first to share your thoughts.

Statistics

Seen <100 times
0 Comments