Centers & Labs

RIKEN Center for Emergent Matter Science

Emergent Phenomena Observation Technology Research Team

Team Leader: Daisuke Shindo (D.Eng.)
Daisuke  Shindo(D.Eng.)

Electron holography is a leading-edge technology utilizing the interference effects of electron waves and is capable of observing electromagnetic fields on the nanometer scale. By measuring electromagnetic field changes in and around specimens under the application of electric and/or magnetic fields, correspondences to their electric and magnetic properties are studied. Furthermore, visualization of collective motions of secondary electrons due to electron movement is realized by measuring perturbed electric fields. Improvement of resolution and precision of these observation technologies will enable us to clarify mechanisms of emergent matter phenomena in many-body systems with multiple degrees of freedom.

Main Research Field

Materials Sciences

Related Research Fields

Physics / Engineering

Research Subjects

  • Improvement of the resolution and precision of the electron holography observation techniques
  • Visualization of dynamic changes in electromagnetic fields under electric and magnetic fields
  • Clarification of charging phenomena and visualization of collective motions of electrons
  • Clarification of mechanisms of emergent matter phenomena in many-body systems with multiple degrees of freedom

Selected Publications

  1. H. S. Park, Z. Yu, S. Aizawa, T. Tanigaki, T. Akashi, Y. Takahashi, T. Matsuda, N. Kanazawa, Y. Onose, D. Shindo, A. Tonomura and Y. Tokura:
    "Observation of the magnetic flux and three-dimensional structure of skyrmion lattices by electron holography"
    Nature Nanotechnology 9, 337-342 (2014)
  2. Y. Murakami, K. Niitsu, T. Tanigaki, R. Kainuma, H. S. Park and D. Shindo:
    "Magnetization amplified by structural disorder within nanometre-scale interface region"
    Nature Communications 5, 4133 (2014)
  3. D. Shindo, S. Aizawa, Z. Akase, T. Tanigaki, Y. Murakami and H. S. Park
    "Electron holographic visualization of collective motion of electrons through electric field variation"
    Microscopy and Microanalysis 20(04), 1015-1021 (2014)
  4. T. Tanigaki, K. Sato, Z.Akase, S. Aizawa, H. S. Park, T. Matsuda, Y. Murakami, D. Shindo and H. Kawase:
    "Split-illumination electron holography for improved evaluation of electrostatic potential associated with electrophotography"
    Applied Physics Letters 104, 131601 (2014)
  5. T. Tanigaki, S. Aizawa, H. S. Park, T. Matsuda, K. Harada and D. Shindo:
    "Advanced split-illumination electron holography without Fresnel fringes"
    Ultramicroscopy 137, 7-11 (2014)
  6. Y. Murakami, A. Ohta, A. N. Hattori, T. Kanki, S. Aizawa, T. Tanigaki, H. S. Park, H. Tanaka and D. Shindo:
    "Revealing magnetic domain structure in functional Fe2.5Zn0.5O4 wires by transmission electron microscopy"
    Acta Materialia 64, 144-153 (2014)
  7. Y. Murakami, T. Tanigaki, T.T. Sasaki, Y. Takeno, H.S. Park, T. Matsuda, T. Ohkubo, K. Hono and D. Shindo:
    "Magnetism of ultrathin intergranular boundary regions in Nd-Fe-B permanent magnets"
    Acta Materialia 71, 370-379 (2014)
  8. M. Shirai, T. Tanigaki, S. Aizawa, H. S. Park, T. Matsuda and D. Shindo:
    "In situ electron holographic study of Ionic liquid"
    Ultramicroscopy, 146, 125-129 (2014)
  9. H. S. Park, Y. Murakami, K. Yanagisawa, T. Matsuda, R. Kainuma, D. Shindo and A. Tonomura:
    "Electron holography studies on narrow magnetic domain walls observed in a Heusler alloy Ni50Mn25Al12.5Ga12.5"
    Advanced Functional Materials 22 3434-3437 (2012)
  10. Z. Akase, H. Kasai, S. Mamishin, D. Shindo, M. Morita and A. Tonomura:
    "Imaging of magnetic flux distribution in vicinity of insulating particles in high-Tc superconductor by electron holography"
    J. Applied Physics 111 033912 (2012)

Lab Members

Principal Investigator

Daisuke Shindo
Team Leader

Core Members

Ken Harada
Senior Scientist
Koudai Niitsu
Postdoctoral Researcher
Yoshimasa Ono
Senior Visiting Scientist
Yasukazu Murakami
Visiting Scientist
Zentaro Akase
Visiting Scientist
Keiko Shimada
Technical Staff II

Contact information

Central Research Laboratory (CRL), Hitachi, Ltd.
Akanuma 2520,
Hatoyama-machi, Hiki-gun,
Saitama 350-0395, Japan

Email: daisuke.shindo [at] riken.jp

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