N
Naoya Kanazawa
Researcher at University of Tokyo
Publications - 87
Citations - 9755
Naoya Kanazawa is an academic researcher from University of Tokyo. The author has contributed to research in topics: Skyrmion & Magnetic field. The author has an hindex of 30, co-authored 75 publications receiving 7342 citations.
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Journal ArticleDOI
Real-space observation of a two-dimensional skyrmion crystal
X. Z. Yu,Yoshinori Onose,Naoya Kanazawa,Jin-Hong Park,Jung Hoon Han,Yoshio Matsui,Naoto Nagaosa,Yoshinori Tokura +7 more
TL;DR: Real-space imaging of a two-dimensional skyrmion lattice in a thin film of Fe0.5Co 0.5Si using Lorentz transmission electron microscopy reveals a controlled nanometre-scale spin topology, which may be useful in observing unconventional magneto-transport effects.
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Near room-temperature formation of a skyrmion crystal in thin-films of the helimagnet FeGe
Xiuzhen Yu,Naoya Kanazawa,Yoshinori Onose,Koji Kimoto,Weizhu Zhang,Shintaro Ishiwata,Yoshio Matsui,Yoshinori Tokura +7 more
TL;DR: The formation of SkX close to room temperature in thin-films of the helimagnet FeGe with magnetic chirality inversion of the SkX across lattice twin boundaries will pave a new path to designing quantum-effect devices based on the controllable skyrmion dynamics.
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Skyrmion flow near room temperature in an ultralow current density
Xiuzhen Yu,Naoya Kanazawa,Weizhu Zhang,Takuro Nagai,Toru Hara,Koji Kimoto,Yoshio Matsui,Yoshinori Onose,Yoshinori Tokura +8 more
TL;DR: Near-room-temperature motion of skyrmions driven by electrical currents in a microdevice composed of the helimagnet FeGe, by using in-situ Lorentz transmission electron microscopy is demonstrated.
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Large Topological Hall Effect in a Short-Period Helimagnet MnGe
Naoya Kanazawa,Yoshinori Onose,Taka-hisa Arima,Daisuke Okuyama,Kenji Ohoyama,S. Wakimoto,Kazuhisa Kakurai,Shintaro Ishiwata,Yoshinori Tokura +8 more
TL;DR: From the neutron diffraction study, it is anticipated that a relatively short-period (3-6 nm) noncoplanar spin structure is stabilized from the proper screw state in a magnetic field to produce the largest topological Hall response among the B20-type (FeSi-type) chiral magnets.
Journal ArticleDOI
Robust formation of Skyrmions and topological Hall effect anomaly in epitaxial thin films of MnSi.
Yufan Li,Yufan Li,Naoya Kanazawa,X. Z. Yu,Atsushi Tsukazaki,Masashi Kawasaki,Masakazu Ichikawa,Xiaofeng Jin,Fumitaka Kagawa,Yoshinori Tokura +9 more
TL;DR: New features distinct from those reported previously for MnSi are observed for epitaxial films: a shorter (nearly half) period of the spin helix and Skyrmions, and a topological Hall effect anomaly consisting in ∼2.2 times enhancement of the amplitude and in the opposite sign with respect to bulk samples.