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

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)77202-1-77202-4
JournalPhysical Review Letters
Volume87
Issue number7
DOIs
Publication statusPublished - 2001 Aug 13
Externally publishedYes

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insulators
orbits
orbitals
x ray absorption
photoelectric emission
angular momentum
anisotropy
temperature
causes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Mizokawa, T., Tjeng, L. H., Sawatzky, G. A., Ghiringhelli, G., Tjernberg, O., Brookes, N. B., ... Maeno, Y. (2001). Spin-orbit coupling in the mott insulator Ca2RuO4 Physical Review Letters, 87(7), 77202-1-77202-4. https://doi.org/10.1103/PhysRevLett.87.077202

Spin-orbit coupling in the mott insulator Ca2RuO4 . / Mizokawa, Takashi; Tjeng, L. H.; Sawatzky, G. A.; Ghiringhelli, G.; Tjernberg, O.; Brookes, N. B.; Fukazawa, H.; Nakatsuji, S.; Maeno, Y.

In: Physical Review Letters, Vol. 87, No. 7, 13.08.2001, p. 77202-1-77202-4.

Research output: Contribution to journalArticle

Mizokawa, T, Tjeng, LH, Sawatzky, GA, Ghiringhelli, G, Tjernberg, O, Brookes, NB, Fukazawa, H, Nakatsuji, S & Maeno, Y 2001, 'Spin-orbit coupling in the mott insulator Ca2RuO4 ', Physical Review Letters, vol. 87, no. 7, pp. 77202-1-77202-4. https://doi.org/10.1103/PhysRevLett.87.077202
Mizokawa T, Tjeng LH, Sawatzky GA, Ghiringhelli G, Tjernberg O, Brookes NB et al. Spin-orbit coupling in the mott insulator Ca2RuO4 Physical Review Letters. 2001 Aug 13;87(7):77202-1-77202-4. https://doi.org/10.1103/PhysRevLett.87.077202
Mizokawa, Takashi ; Tjeng, L. H. ; Sawatzky, G. A. ; Ghiringhelli, G. ; Tjernberg, O. ; Brookes, N. B. ; Fukazawa, H. ; Nakatsuji, S. ; Maeno, Y. / Spin-orbit coupling in the mott insulator Ca2RuO4 In: Physical Review Letters. 2001 ; Vol. 87, No. 7. pp. 77202-1-77202-4.
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AU - Tjernberg, O.

AU - Brookes, N. B.

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