Spin-orbit coupling in the Mott insulator Ca2RuO4

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

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Abstract

The spin-resolved circularly polarized photoemission measurement of Ca2RuO2 was carried out. It was found that the strong spin-orbit coupling induces the substantial orbital angular momentum in the Ru 4d t2g band. The large temperature dependence of the 0 1s XAS data shows that the orbital population of the t2g band is drastically changed by the small compression of the RuO6 octahedra and the strong spin-orbit interaction.

Original languageEnglish
Article number077202
Pages (from-to)077202/1-077202/4
JournalPhysical Review Letters
Volume87
Issue number7
Publication statusPublished - 2001 Aug 13
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Tjeng, L. H., Sawatzky, G. A., Brookes, N. B., Fukazawa, H., Nakatsuji, S., Mizokawa, T., Ghiringhelli, G., Tjernberg, O., & Maeno, Y. (2001). Spin-orbit coupling in the Mott insulator Ca2RuO4 Physical Review Letters, 87(7), 077202/1-077202/4. [077202].