Masaki Kobayashi's Home Page


last update: 24th July, 2017          Japanese version is here

Associate Professor

     Center for Spintronic Research Network, School of Engineering, University of Tokyo, Japan

[Academic background]

2003 Mar.  -  BS, Department of Physics, Tokyo University of Science
2005 Mar.  -  MS, Fujimori group, Department of Physics, University of Tokyo
Master Thesis: "Photoemission and X-ray Magnetic Circular Dichroism Study of 
                            the Diluted Magnetic Semiconductor Zn1-xCoxO"  
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2008 Mar.  -  DSc, Fujimori group, Department of Physics, University of Tokyo
                  JSPS Research Fellowships for Young Scientists (DC1)
Dissertation: "Soft X-Ray Spectroscopic Study of Oxide and Telluride-Based
                         Diluted Magnetic Semiconductors"
-download (9MB)

[Professional career]

2017 Apr. - present        Center for Spintronic Research Network, School of Engineering,
                                    University of Tokyo, Japan
                                  Associate Professor
2013 Jan. - 2017 Mar.    Photon Factory, Institute of Materials Structure Science, KEK, Japan
                                  Research Assistant Professor
2011 Apl.  - 2012 Sept.     Swiss Light Source, Paul Sherrer Institut
                                    Guest Scientist
2010 Apl.  - 2012 Dec.     JSPS research fellowship (PD),
                                    Department of Applied Chemistry, University of Tokyo
2008 Apl.  - 2010 Mar.  NEDO Postdoctoral researcher, 
                                    Department of Applied Chemistry, University of Tokyo

[Research interest]


    • Diluted magnetic semiconductor
    • Disorder effects on correlated metal
    • Transition-metal oxide
    • Fuel cell cathode catalyst
    • High-Tc superconductor
    • Metallic quantum well in strongly correlated oxide

Experimental methods

    • Photoemission spectroscopy (PES)
    • X-ray absorption spectroscopy (XAS)
    • X-ray magnetic circular dichroism (XMCD)
    • X-ray absorption fine structure (XAFS)
    • Soft x-ray resonant inelastic X-ray scattering (SX-RIXS)
    • Angle-resolved photoemission (ARPES)
    • Pulsed laser deposition (PLD) method for thin film growth


Original papers (Total: 90, 1st author: 15)

  • M. Kobayashi, K. Yoshimatsu, T. Mitsuhashi, M. Kitamura, E. Sakai, R. Yukawa, M. Mihohara, A. Fujimori, K. Horiba, and H. Kumigashira:
    "Emergence of quantum critical behavior in metallic quantum-well states of strongly correlated oxides", submitted. arXiv.1706.02433

2017 (Total: 7, 1st author: 0)

2016 (Total: 15, 1st author: 0)

2015 (Total: 14, 1st author: 1)

2014 (Total: 9, 1st author: 3)

2013 (Total: 5, 1st author: 0)

2012 (Total: 8, 1st author: 2)

2011 (Total: 6, 1st author: 1)

2010 (Total: 2, 1st author: 1)

2009 (Total: 2, 1st author: 2)

2008 (Total: 9, 1st author: 3)

2007 (Total: 6, 1st author: 1)

-2006 (Total: 7, 1st author: 1)

Proceedings (Total: 10, 1st author: 3)


2015 Jan.    19th incentive award of the Japanese Society for Synchrotron Radiation Research

                  "Study of Electronic Structure in Magnetic Semiconductor Using Ultra-High

                    Resolution Soft X-ray Emission Spectroscopy"   

International conference and school


  1. PSI 10th Summer School on Condensed Matter Research, Zug, SWITZERLAND (13-22 August, 2011)
    "Soft X-ray Angle-Resolved Photoemission Spectroscopy Study on Iron-based Superconductor Ba1-xKxFe2As2"
  2. JUM@P '11: Joint Users' Meeting at PSI 2011, Villigen, SWITZERLAND (15-16 Sept. 2011)
    "Soft X-ray Angle-resolved Photoemission Spectroscopy Study on Iron-based Superconductor Ba1-xKxFe2As2""
  3. HAXPES 2011 - 4th International Workshop on Hard X-ray Photoelectron Spectroscopy, Hamburg, GERMANY (14-16 Sept. 2011)