Spin–Orbit Effects on the Ru-<I>d</I> Orbital Hybridization and Fermi Surface in Ca<SUB>2−<I>x</I></SUB>Sr<I><SUB>x</SUB></I>RuO<SUB>4</SUB>

• Oguchi Tamio

  Department of Quantum Matter, ADSM, Hiroshima University Institute for Advanced Materials Research, Hiroshima University

Bibliographic Information

Other Title

• Spin-orbit effects on the Ru-d orbital hybridization and Fermi surface in Ca2-xSr[x]RuO4
• Spin–Orbit Effects on the Ru-<i>d</i> Orbital Hybridization and Fermi Surface in Ca_2-<i>x</i>Sr_<i>x</i>RuO₄
• Spin-orbit effects on the Ru-d orbital hybridization and Fermi surface in Ca2−xSrxRuO4

Abstract

Orbital hybridization and Fermi surface of Ca_2−xSr_xRuO₄ in metallic phases (0.2≤x≤2) are studied by using first-principles electronic-structure calculations with spin–orbit coupling (SOC). The SOC effect appears almost negligible in the electronic structure near the Fermi energy in Sr₂RuO₄, while it turns out to be significant in Ca_2−xSr_xRuO₄ (x=0.5 and 0.2) because of coupling with symmetry lowering due to rotation and tilt of RuO₆ octahedron. Calculated Fermi-surface topology for Ca_2−xSr_xRuO₄ (x=0.5 and 0.2) is reasonably consistent with recent angle-resolved photo-emission spectroscopy measurements.

Journal

• Journal of the Physical Society of Japan

  Journal of the Physical Society of Japan 78 (4), 044702-044702, 2009

  THE PHYSICAL SOCIETY OF JAPAN

Keywords

• layered perovskite
• electronic structure
• Fermi surface
• spin–orbit coupling
• orbital hybridization

Details

• CRID: 1390001204196239104
• NII Article ID: 130005437373
• NII Article ID: 10025959487
• NII Article ID: 210000107769
• NII Book ID: AA00704814
• DOI: 10.1143/jpsj.78.044702
• ISSN: 13474073
• ISSN: 00319015
• NDL BIB ID: 10206540
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10206540
• Web Site: https://journals.jps.jp/doi/pdf/10.1143/JPSJ.78.044702
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed