Investigation on the Itinerant/Local Magnetic Nature in SrRuO3 by ARPES

ORAL

Abstract

SrRuO3 (SRO), one of the most famous perovskite metallic ferromagnets, has been the center of various research perspectives. One of the key issue with a long-time standing debate is the origin of ferromagnetism with metallicity. We studied the three-dimensional electronic structure of SRO single crystals by angle-resolved photoemission spectroscopy. We determined the inner potential of SRO single crystals for the first time. We also measured band dispersions on high symmetry planes and opened a way to cross-check theoretical electronic structures of SRO, which has not been accomplished during last 20 years. We also obtained temperature dependence of the ferromagnetic exchange splitting. These results implied the existence of short-range magnetic order above the Curie temperature and supported the dual nature of itinerant/local magnetism in SRO. Detailed experimental results and analyses will be presented and discussed.

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Presenters

  • Ji Seop Oh

    Institute for Basic Science

Authors

  • Ji Seop Oh

    Institute for Basic Science

  • Se Young Park

    Center for Correlated Electron Systems (CCES), Institute for Basic Science (IBS), Institute for Basic Science

  • Wonshik Kyung

    Lawrence Berkeley National Laboratory

  • Naoki Kikugawa

    Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany, National Institute for Material Science, Tsukuba, Ibaraki, National Institute for Materials Science, Tsukuba, National Institute for Materials Science, Quantum Transport Properties Group, National Institute for Materials Science (NIMS), Tsukuba 305-0003, Japan, National Institute for Material Science

  • Yoshiyuki Yoshida

    AIST, National Institute of Advanced Industrial Science and Technology), National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, Japan, National Institute of Advanced Industrial Science and Technology

  • Junyoung Kwon

    CCES-IBS, Institute for Basic Science

  • Simon K Moser

    Advanced Light Source, Lawrence Berkeley National Laboratory, Lawrence Berkeley National Laboratory

  • Roland Koch

    Advanced Light Source, Lawrence Berkeley National Laboratory, Lawrence Berkeley National Laboratory, Advanced Light Source, E. O. Lawrence Berkeley National Laboratory

  • Chris Jozwiak

    Advanced Light Source, E.O. Lawrence Berkeley National Lab, Berkeley, CA 94720, USA, Advanced Light Source, Lawrence Berkeley National Laboratory, ALS, Lawrence National Berkeley Laboratory, Advanced Light Source, Lawrence Berkeley National Lab, Lawrence Berkeley National Laboratory, Lawrence Berkeley National Lab, Berkeley, USA, Advanced Light Source (ALS), E. O. Lawrence Berkeley National Laboratory, USA, Advanced Light Source, E. O. Lawrence Berkeley National Laboratory

  • Aaron Bostwick

    Advanced Light Source, E.O. Lawrence Berkeley National Lab, Berkeley, CA 94720, USA, Advanced Light Source, Lawrence Berkeley National Laboratory, ALS, Lawrence National Berkeley Laboratory, Advanced Light Source, Lawrence Berkeley National Lab, Lawrence Berkeley National Laboratory, Advanced Light Source (ALS), E. O. Lawrence Berkeley National Laboratory, USA, Advanced Light Source, E. O. Lawrence Berkeley National Laboratory

  • Eli Rotenberg

    Advanced Light Source, E.O. Lawrence Berkeley National Lab, Berkeley, CA 94720, USA, Advanced Light Source, Lawrence Berkeley National Laboratory, ALS, Lawrence National Berkeley Laboratory, Advanced Light Source, Lawrence Berkeley National Lab, Lawrence Berkeley National Laboratory, Advanced Light Source (ALS), E. O. Lawrence Berkeley National Laboratory, USA, Advanced Light Source, E. O. Lawrence Berkeley National Laboratory

  • Changyoung Kim

    Department of Physics and Astronomy, Seoul National University (SNU), Physics and astronomy, Seoul National University, Seoul National University, CCES-IBS, Institute for Basic Science, IBS-CCES, Seoul National University

  • Tae Won Noh

    Center for Correlated Electron Systems (CCES), Institute for Basic Science (IBS), Department of physics, Seoul National University, Institute for Basic Science