Spin-orbit coupling in the mott insulator Ca2RuO4

Takashi Mizokawa, L. H. Tjeng, G. A. Sawatzky, G. Ghiringhelli, O. Tjernberg, N. B. Brookes, H. Fukazawa, S. Nakatsuji, Y. Maeno

研究成果: Article査読

4 被引用数 (Scopus)

抄録

O 1s x-ray absorption study of the Mott insulator Ca2RuO4 shows that the orbital population of the 4d t2g band dramatically changes with temperature. In addition, spin-resolved circularly polarized photoemission study of Ca2RuO4 shows that a substantial orbital angular momentum is induced in the Ru 4d t2g band. Based on the experimental results and model Hartree-Fock calculations, we argue that the cooperation between the strong spin-orbit coupling in the Ru 4d t2g band and the small distortion of the RuO6 octahedra causes the interesting changeover of the spin and orbital anisotropy as a function of temperature.

本文言語English
ページ(範囲)77202-1-77202-4
ジャーナルPhysical Review Letters
87
7
DOI
出版ステータスPublished - 2001 8月 13
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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