K
Kensuke Kobayashi
Researcher at Osaka University
Publications - 191
Citations - 6186
Kensuke Kobayashi is an academic researcher from Osaka University. The author has contributed to research in topics: Magnetic field & Magnetoresistance. The author has an hindex of 36, co-authored 189 publications receiving 5643 citations. Previous affiliations of Kensuke Kobayashi include Institute for Creation Research & University of Tokyo.
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Journal ArticleDOI
Tuning of the Fano effect through a quantum dot in an Aharonov-Bohm interferometer.
TL;DR: A tunable Fano system in a quantum dot (QD) in an Aharonov-Bohm interferometer is realized, which is the first convincing demonstration of this effect in mesoscopic systems.
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Electrical switching of the vortex core in a magnetic disk
Keisuke Yamada,Shinya Kasai,Yoshinobu Nakatani,Kensuke Kobayashi,Hiroshi Kohno,André Thiaville,Teruo Ono +6 more
TL;DR: Efficient switching of the vortex core without magnetic-field application is achieved owing to resonance, which opens up the potentiality of a simple magnetic disk as a building block for spintronic devices such as a memory cell where the bit data is stored as the direction of the nanometre-scale core magnetization.
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Electrical control of the ferromagnetic phase transition in cobalt at room temperature
Daichi Chiba,Daichi Chiba,Shunsuke Fukami,Kazutoshi Shimamura,Nobuyuki Ishiwata,Kensuke Kobayashi,Teruo Ono +6 more
TL;DR: The room-temperature electrical control of the ferromagnetic phase transition in cobalt, one of the most representative transition-metal ferromagnets, is demonstrated at room temperature.
Journal ArticleDOI
Electrical switching of vortex core in a magnetic disk
Keisuke Yamada,Shinya Kasai,Yoshinobu Nakatani,Kensuke Kobayashi,Hiroshi Kohno,André Thiaville,Teruo Ono +6 more
TL;DR: In this article, the authors demonstrate the electrical switching of the core magnetisation by utilizing the current-driven resonant dynamics of the vortex; the core switching is triggered by a strong dynamic field which is produced locally by a rotational core motion at a high speed of several hundred m/s.
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Observation of the intrinsic pinning of a magnetic domain wall in a ferromagnetic nanowire
Tomohiro Koyama,Daichi Chiba,Daichi Chiba,Kohei Ueda,Kouta Kondou,Hironobu Tanigawa,Shunsuke Fukami,Teruaki Suzuki,Norikazu Ohshima,Nobuyuki Ishiwata,Yoshinobu Nakatani,Kensuke Kobayashi,Teruo Ono +12 more
TL;DR: Evidence is given that this intrinsic pinning determines the threshold, and thus that the adiabatic spin torque dominates the domain wall motion in a perpendicularly magnetized Co/Ni nanowire, to achieve robust operation and low energy consumption in spintronic devices.