2003/07/22 by Gen'ya Sakurai, Gen’ya Sakurai, Yoshio Kuramoto
Materials Science · Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quasicrystal Structures and Properties #Rare-earth and actinide compounds #cond-mat.str-el
paper · pdf · doi:10.1143/jpsj.73.225
30 pages, 4 figures
arxiv created 2003/07/22 · openalex publication_date 2004/01/15 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.