Emergent Phenomena Observation Technology Research Team
Team Leader
Daisuke SHINDO (D.Eng.)
In addition to microstructure analysis and composition/state analysis by high-resolution electron microscopy and analytical electron microscopy, electromagnetic field analysis both inside and outside specimens is carried out by electron holography. Electron holography is a leading-edge technology which utilizes the interference effect of the electron wave and can observe the electromagnetic field on the nanometer scale. In the analysis of electromagnetic field, a special specimen holder attached with plural probes is utilized and the change of the electromagnetic field of the specimen under the voltage and magnetic field applied is investigated, and eventually its correspondence to the electric and magnetic properties of the specimen is clarified. By improving the resolution and precision of these observation technologies, clarification of the mechanism of emergent phenomena in newly designed specimens of many-body systems with multiple degrees of freedom is extensively carried out.
- Analysis of microstructure and electromagnetic field by high-resolution/analytical electron microscopy and electron holography
- Dynamic observation of electromagnetic field under the voltage and magnetic field applied by a special specimen holder attached with plural probes
- Improvement of resolution and precision of the above observation technologies and clarification of mechanism of emergent phenomena in many-body systems with multiple degrees of freedom
- Park, H.S., Murakami, Y., Yanagisawa, K., Matsuda, T., Kainuma, R., Shindo, D., and Tonomura, A.:
"Electron Holography Studies on Narrow Magnetic Domain Walls Observed in a Heusler Alloy Ni50Mn25Al12.5Ga12.5"
Adv. Funct. Mater. 22, 3434 (2012). - Akase, Z., Kasai, H., Mamishin, S., Shindo, D., Morita, M., and Tonomura, A.:
"Imaging of magnetic flux distribution in vicinity of insulating particles in high-Tc superconductor by electron holography"
J. Appl. Phys. 111, 033912 (2012). - Tanigaki, T., Inada, Y., Aizawa, S., Suzuki, T., Park, H.S., Matsuda, T., Taniyama, A., Shindo, D., and Tonomura, A.:
"Split-illumination electron holography"
Appl. Phys. Lett. 101, 043101 (2012). - Xia, W.X., Aizawa, S., Tanigaki, T., Suzuki, T., Yoshizawa, Y., Shindo, D., and Tonomura, A .:
"Magnetization distribution of magnetic vortex of amorphous FeSiB investigated by electron holography and computer simulation"
J. Electron Microsc. 61, 71 (2012). - Murakami, Y., Nii, Y., Arima, T., Shindo, D., Yanagisawa, K., and Tonomura, A.:
"Magnetic domain structure in the orbital-spin-coupled system MnV2O4"
Phys. Rev. B 84, 054421 (2011). - Murakami, Y., Kasai, H., Kim, J.J., Mamishin, S., Shindo, D., Mori, S., and Tonomura, A.:
"Ferromagnetic domain nucleation and growth in colossal magnetoresistive manganite"
Nat. Nanotecknol. 5, 37 (2010). - Xia, W.X., Chun, Y.S., Aizawa, S., Yanagisawa, K., Krishnan, K.M., Shindo, D., and Tonomura, A.:
"Investigation of magnetic structure and magnetization process of yttrium iron garnet film by Lorentz microscopy and electron holography"
J. Appl. Phys. 108, 123919 (2010). - Xia, W.X., Hirata, K., Yanagisawa, K., Ishida, Y., Kasai, H., Yanagiuchi, K., Shindo, D., and Tonomura, A.:
"Quantitative evaluation of magnetic flux density in a magnetic recording head and pseudo soft underlayer by electron holography"
J. Electron Microsc. 59, 331 (2010). - Shindo, D., and Murakami, Y.:
"Electron holography study of electric field variations"
J. Electron Microsc. 60, S225 (2011). - Shindo, D., and Murakami, Y.:
"Electron holography of magnetic materials"
J. Phys. D Appl. Phys. 41, 183002 (2008)
Principal Investigator
- Daisuke SHINDO
- Team Leader