Determination of the orbital moment and crystal-field splitting in LaTiO3

M. W. Haverkort*, Z. Hu, A. Tanaka, G. Ghiringhelli, H. Roth, M. Cwik, T. Lorenz, C. Schuß̈ler-Langeheine, S. V. Streltsov, A. S. Mylnikova, V. I. Anisimov, C. De Nadai, N. B. Brookes, H. H. Hsieh, H. J. Lin, C. T. Chen, T. Mizokawa, Y. Taguchi, Y. Tokura, D. I. KhomskiiL. H. Tjeng

*この研究の対応する著者

研究成果: Article査読

55 被引用数 (Scopus)

抄録

Utilizing a sum rule in a spin-resolved photoelectron spectroscopic experiment with circularly polarized light, we show that the orbital moment in LaTiO3 is strongly reduced from its ionic value, both below and above the Néel temperature. Using Ti L2,3 x-ray absorption spectroscopy as a local probe, we found that the crystal-field splitting in the t2g subshell is about 0.12-0.30 eV. This large splitting does not facilitate the formation of an orbital liquid.

本文言語English
論文番号056401
ジャーナルPhysical Review Letters
94
5
DOI
出版ステータスPublished - 2005 2 11
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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