Competition and transitions of the ground state properties of the impurity Anderson model with multi-electron occupancy

O. Sakai, S. Suzuki, Y. Shimizu

研究成果: Article査読

13 被引用数 (Scopus)

抄録

To study the Kondo effect of the multi-electron occupancy systems (KEMES), the impurity Anderson model with tetrahedral crystalline field and intraatomic exchange interaction is investigated as an example. The low energy properties and the magnetization are examined based on Wilson's numerical renormalization group method. When the hybridization strength is increased by fixing the lowest atomic state as the non-Kramers doublet (f25, the ground state shows successively the doublet-like, the crystalline-field-singlet-like and f0-singlet-like properties. The first one is the non-Fermi liquid state of the two-channel Kondo type. The last two are Fermi-liquid states, separated by transition with anomalous lowering of the low energy scale. These results suggest more varieties of KEMES than those previously expected.

本文言語English
ページ(範囲)791-796
ページ数6
ジャーナルSolid State Communications
101
11
DOI
出版ステータスPublished - 1997 3

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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