Takahisa Arima
Team Leader
Strong Correlation Quantum Structure Research Team
The Institute of Physical and Chemical Research (RIKEN)
Japan
Biography
Strongly correlated electron systems may exhibit various interesting emergent phenomena such as superconductivity, colossal magneto-resistance, and giant magneto-electric effects. These emergent phenomena are directly associated with the spatial distributions as well as the spatial and temporal fluctuations of atoms, electron density, and spin density. We are going to perform crystallographic and magnetic structure analyses, spectroscopies, and microscopies by using synchrotron x-rays, neutrons, and high-energy electron beams to reveal them.
Research Interest
Materials Sciences and Physics
Publications
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Morikawa D., Yu X. Z., Kaneko Y., Tokunaga Y., Nagai T., Kimoto K., Arima T., Tokura Y.: “Lorentz transmission electron microscopy on nanometric magnetic bubbles and skyrmions in bilayered manganites La1.2Sr1.8(Mn1−yRuy)2O7 with controlled magnetic anisotropy†Appl. Phys. Lett. 107, 212401 (2015).
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Yamasaki Y., Morikawa D., Honda T., Nakao H., Murakami Y., Kanazawa N., Kawasaki M., Arima T., Tokura Y.: “Dynamical process of skyrmion-helical magnetic transformation of the chiral-lattice magnet FeGe probed by small-angle resonant soft x-ray scattering†Phys. Rev. B 92, 220421(R) (2015).
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Nakajima T., Takahashi Y., Kibayashi S., Matsuda M., Kakurai K., Ishiwata S., Taguchi Y., Tokura Y., Arima T.: “Electromagnon excitation in the field-induced noncollinear ferrimagnetic phase of Ba2Mg2Fe12O22 studied by polarized inelastic neutron scattering and terahertz time-domain optical spectroscopy†Phys. Rev. B 93, 035119 (2016).
