Orbital state and metal-insulator transition in (formula presented) studied by model Hartree-Fock calculations

M. Kurokawa, Takashi Mizokawa

研究成果: Article査読

12 被引用数 (Scopus)

抄録

(formula presented) is a quasi-two-dimensional Mott transition system. We have studied the relationship between the metal-insulator transition and the changes of orbital states using model Hartree-Fock calculations. As the (formula presented) Coulomb interaction increases, the ground state changes from paramagnetic metal (PM) to antiferromagnetic metal (AFM) to antiferromagnetic insulator (AFI). Magnetic anisotropy is strong in the AFI state due to the spin-orbit interaction while it is weak in the AFM state. It has been found that the magnetic anisotropy is controlled by the Jahn-Teller distortion. We have also investigated the effect of the tilting and rotation of the (formula presented) octahedron. The calculated result is consistent with the electronic phase diagram of (formula presented).

本文言語English
ページ(範囲)1-4
ページ数4
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
66
2
DOI
出版ステータスPublished - 2002 1 1
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

フィンガープリント

「Orbital state and metal-insulator transition in (formula presented) studied by model Hartree-Fock calculations」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル