Electronic structure and evolution of the orbital state in metallic Ca2-x Srx Ru O4

Han Jin Noh, S. J. Oh, B. G. Park, J. H. Park, J. Y. Kim, H. D. Kim, Takashi Mizokawa, L. H. Tjeng, H. J. Lin, C. T. Chen, S. Schuppler, S. Nakatsuji, H. Fukazawa, Y. Maeno

Research output: Contribution to journalArticle

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Abstract

We investigated the electronic structure of a layered Ca2-x Srx Ru O4 in a metallic regime (0.15≤x≤2.0) using a polarization dependent O 1s x-ray absorption spectroscopy. The spectrum shows strong variations with the polarization especially in Ru 4d region, which enables us to identify the electronic states. The spectral line shape gradually changes with increase of Sr concentration, and agrees well with an unrestricted Hartree-Fock analysis, which suggests evolution of the orbital states and provides clues for how the lattice distortion affects the orbital occupations.

Original languageEnglish
Article number052411
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume72
Issue number5
DOIs
Publication statusPublished - 2005 Aug 1
Externally publishedYes

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Electronic structure
Polarization
electronic structure
orbitals
Electronic states
polarization
Absorption spectroscopy
x ray absorption
occupation
x ray spectroscopy
line spectra
line shape
absorption spectroscopy
X rays
electronics

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Electronic structure and evolution of the orbital state in metallic Ca2-x Srx Ru O4. / Noh, Han Jin; Oh, S. J.; Park, B. G.; Park, J. H.; Kim, J. Y.; Kim, H. D.; Mizokawa, Takashi; Tjeng, L. H.; Lin, H. J.; Chen, C. T.; Schuppler, S.; Nakatsuji, S.; Fukazawa, H.; Maeno, Y.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 72, No. 5, 052411, 01.08.2005.

Research output: Contribution to journalArticle

Noh, HJ, Oh, SJ, Park, BG, Park, JH, Kim, JY, Kim, HD, Mizokawa, T, Tjeng, LH, Lin, HJ, Chen, CT, Schuppler, S, Nakatsuji, S, Fukazawa, H & Maeno, Y 2005, 'Electronic structure and evolution of the orbital state in metallic Ca2-x Srx Ru O4', Physical Review B - Condensed Matter and Materials Physics, vol. 72, no. 5, 052411. https://doi.org/10.1103/PhysRevB.72.052411
Noh, Han Jin ; Oh, S. J. ; Park, B. G. ; Park, J. H. ; Kim, J. Y. ; Kim, H. D. ; Mizokawa, Takashi ; Tjeng, L. H. ; Lin, H. J. ; Chen, C. T. ; Schuppler, S. ; Nakatsuji, S. ; Fukazawa, H. ; Maeno, Y. / Electronic structure and evolution of the orbital state in metallic Ca2-x Srx Ru O4. In: Physical Review B - Condensed Matter and Materials Physics. 2005 ; Vol. 72, No. 5.
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