T
Tatsumi Kimura
Researcher at University of Tokyo
Publications - 140
Citations - 5831
Tatsumi Kimura is an academic researcher from University of Tokyo. The author has contributed to research in topics: Polymerization & Azobenzene. The author has an hindex of 34, co-authored 139 publications receiving 5571 citations. Previous affiliations of Tatsumi Kimura include National Institute of Advanced Industrial Science and Technology.
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Magnetocapacitance effect in multiferroic BiMnO 3
TL;DR: In this article, the structural, magnetic, and electric properties of ferromagnetic perovskite structures were investigated and the changes in the dielectric constant were induced by the magnetic ordering.
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Distorted perovskite with e g 1 configuration as a frustrated spin system
Tatsumi Kimura,Sumio Ishihara,Hiroshi Shintani,Taka-hisa Arima,Kazuyuki Takahashi,Kyoko Ishizaka,Yasuhiro Tokura +6 more
TL;DR: In this article, the evolution of spin and orbital-ordered states has been investigated for a series of insulating perovskites with a large distortion, which is regarded as a frustrated spin system having ferromagnetic nearest-neighbor and antiferromagnetic (AF) next-NEIGHbor (NNN) interactions.
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Intergrain tunneling magnetoresistance in polycrystals of the ordered double perovskite Sr 2 FeReO 6
TL;DR: In this article, the first-principles band calculation predicts that the half metallic ground state with the ferrimagnetic coupling of Fe and Re spins has been obtained and the experimental results of electronic and magnetic properties are in accord with this picture.
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Observation of a Griffiths Phase in Paramagnetic La 1 − x Sr x MnO 3
Joachim Deisenhofer,Daniel Braak,H.-A. Krug von Nidda,Joachim Hemberger,R. M. Eremina,V. A. Ivanshin,A. M. Balbashov,Giancarlo Jug,Alois Loidl,Tatsumi Kimura,Yasuhiro Tokura +10 more
TL;DR: A novel triangular phase regime is discovered in the system La1-xSrxMnO3 by means of electron spin resonance and magnetic susceptibility measurements, characterized by the coexistence of ferromagnetic entities within the globally paramagnetic phase far above the magnetic ordering temperature.
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Structural and magnetoelectric properties of Ga 2 − x Fe x O 3 single crystals grown by a floating-zone method
Taka-hisa Arima,Taka-hisa Arima,D. Higashiyama,Yoshio Kaneko,J. P. He,T. Goto,Shigeki Miyasaka,Tatsumi Kimura,Kenichi Oikawa,Takashi Kamiyama,Reiji Kumai,Y. Tokura,Y. Tokura +12 more
TL;DR: In this paper, lattice-structural, magnetic, and magnetoelectric properties have been investigated for single crystals of prototypical polar ferrimagnet, which are melt-grown by a floating-zone (FZ) method.