RIKEN Center for Emergent Matter Science
Emergent Phenomena Observation Technology Research Team
Team Leader: 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
Related Research Fields
Physics / Engineering
- 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
- 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)
- 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)
- 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)
- 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)
- 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)
- 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)
- 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)
- 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)
- 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)
- 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)
- Daisuke Shindo
- Team Leader
- 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