Multipolar interactions in the Anderson lattice with orbital degeneracy

Gen'ya Sakurai, Yoshio Kuramoto

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Microscopic investigation is performed for intersite multipolar interactions in the orbitally degenerate Anderson lattice, with CeB6 taken as an exemplary target. In addition to the f0 intermediate state, f2 Hund's-rule ground states are included as intermediate states for the interactions. The conduction-band states are taken as plane waves and the hybridization as spherically symmetric. The spatial dependences of multipolar interactions are given by the relative weight of partial wave components along the pair of sites. It is clarified how the the anisotropy arises in the interactions depending on the orbital degeneracy and the spatial configuration. The stability of the Γ5 antiferro-quadrupole order in the phase II of CeB6 is consistent with our model. Moreover, the pseudo-dipole interactions follow a tendency required by the phenomenological model for the phase III.

Original languageEnglish
Pages (from-to)225-238
Number of pages14
Journaljournal of the physical society of japan
Volume73
Issue number1
DOIs
Publication statusPublished - 2004 Jan

Keywords

  • Anderson lattice
  • Octupole
  • Orbital degeneracy
  • Pseudo-dipole
  • Quadrupole order
  • RKKY interaction

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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