H
H. Murakawa
Researcher at University of Tokyo
Publications - 42
Citations - 2926
H. Murakawa is an academic researcher from University of Tokyo. The author has contributed to research in topics: Magnetic field & Magnetization. The author has an hindex of 23, co-authored 34 publications receiving 2492 citations. Previous affiliations of H. Murakawa include Osaka University & Global Alliance in Management Education.
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Journal ArticleDOI
Giant Rashba-type spin splitting in bulk BiTeI
Kyoko Ishizaka,Mohammad Saeed Bahramy,H. Murakawa,M. Sakano,Takahiro Shimojima,T. Sonobe,K. Koizumi,Shik Shin,Hirokazu Miyahara,Akio Kimura,Koji Miyamoto,Taichi Okuda,Hirofumi Namatame,Masaki Taniguchi,Masaki Taniguchi,Ryotaro Arita,Naoto Nagaosa,Kensuke Kobayashi,Youichi Murakami,Reiji Kumai,Reiji Kumai,Yoshio Kaneko,Yoshinori Onose,Yoshinori Tokura +23 more
TL;DR: The finding of a huge spin-orbit interaction effect in a polar semiconductor composed of heavy elements, BiTeI, where the bulk carriers are ruled by large Rashba-likespin splitting is described, confirming that the spin splitting is indeed derived from bulk atomic configurations.
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Low-Magnetic-Field Control of Electric Polarization Vector in a Helimagnet
TL;DR: Low-magnetic-field (for example, B values of ±30 milliteslas) control of the polarization vector in a hexaferrite, Ba2Mg2Fe12O22, which shows the helimagnetic spin structure with the propagation vector k0 parallel to [001].
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Detection of Berry’s Phase in a Bulk Rashba Semiconductor
H. Murakawa,Mohammad Saeed Bahramy,Masashi Tokunaga,Yoshimitsu Kohama,Christopher Bell,Yoshio Kaneko,Naoto Nagaosa,Harold Y. Hwang,Yoshinori Tokura +8 more
TL;DR: In this paper, the Shubnikov-de Haas (SdH) effect was used to detect a nontrivial π Berry phase in the bulk Rashba semiconductor BiTeI via analysis of the SdH effect.
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Magnetoelectric resonance with electromagnons in a perovskite helimagnet
TL;DR: In this article, the identification of electromagnons in a perovskite helimagent may be useful in the development of ways to manipulate light, as shown in Figure 1.
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Ferroelectricity induced by spin-dependent metal-ligand hybridization in Ba₂CoGe₂O₇.
TL;DR: It is shown that the ferroelectric polarization cannot be explained by the well-accepted spin current model nor the exchange striction mechanism, but is induced by the spin-dependent p-d hybridization between the transition metal (Co) and ligand (O) via thespin-orbit interaction.