K
Ken-ichi Uchida
Researcher at University of Tokyo
Publications - 577
Citations - 21018
Ken-ichi Uchida is an academic researcher from University of Tokyo. The author has contributed to research in topics: Thermoelectric effect & Large Hadron Collider. The author has an hindex of 59, co-authored 428 publications receiving 16422 citations. Previous affiliations of Ken-ichi Uchida include NEC & National Presto Industries.
Papers
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Journal ArticleDOI
Observation of the spin Seebeck effect
Ken-ichi Uchida,Saburo Takahashi,K. Harii,Jun'ichi Ieda,Wataru Koshibae,Kazuya Ando,Sadamichi Maekawa,Eiji Saitoh,Eiji Saitoh +8 more
TL;DR: The spin Seebeck effect allows us to pass a pure spin current, a flow of electron spins without electric currents, over a long distance, and is directly applicable to the production of spin-voltage generators, which are crucial for driving spintronic devices.
Journal ArticleDOI
Transmission of electrical signals by spin-wave interconversion in a magnetic insulator
Y. Kajiwara,Kazuya Harii,Saburo Takahashi,Jun-ichiro Ohe,Ken-ichi Uchida,Masaki Mizuguchi,H. Umezawa,H. Kawai,Kazuya Ando,Kazuya Ando,Koki Takanashi,Sadamichi Maekawa,Eiji Saitoh,Eiji Saitoh,Eiji Saitoh +14 more
TL;DR: It is shown that a spin wave in an insulator can be generated and detected using spin-Hall effects, which enable the direct conversion of an electric signal into aspin wave, and its subsequent transmission through (and recovery from) an insulators over macroscopic distances.
Journal ArticleDOI
Spin Seebeck insulator.
Ken-ichi Uchida,Jiang Xiao,Jiang Xiao,Hiroto Adachi,Jun-ichiro Ohe,Saburo Takahashi,Jun'ichi Ieda,Takeru Ota,Y. Kajiwara,H. Umezawa,H. Kawai,Gerrit E. W. Bauer,Sadamichi Maekawa,Eiji Saitoh,Eiji Saitoh,Eiji Saitoh +15 more
TL;DR: In this paper, it was shown that the magnetic insulator LaY(2)Fe(5)O(12) can convert a heat flow into a spin voltage, which can then be converted into an electric voltage as a result of the inverse spin Hall effect.
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Spin Hall Magnetoresistance Induced by a Nonequilibrium Proximity Effect
Hiroyasu Nakayama,Matthias Althammer,Yan Ting Chen,Ken-ichi Uchida,Ken-ichi Uchida,Y. Kajiwara,Daisuke Kikuchi,Toshiro Ohtani,Stephan Geprägs,Matthias Opel,Saburo Takahashi,Rudolf Gross,Gerrit E. W. Bauer,Gerrit E. W. Bauer,Sebastian T. B. Goennenwein,Eiji Saitoh +15 more
TL;DR: It is shown that the effect originates from concerted actions of the direct and inverse spin Hall effects and therefore it is called "spin Hall magnetoresistance."
Journal ArticleDOI
Observation of longitudinal spin-Seebeck effect in magnetic insulators
Ken-ichi Uchida,Hiroto Adachi,Takeru Ota,Hiroyasu Nakayama,Sadamichi Maekawa,Eiji Saitoh,Eiji Saitoh +6 more
TL;DR: In this paper, a longitudinal spin-Seebeck effect (SSE) is proposed, in which a magnon-induced spin current is injected parallel to a temperature gradient from a ferromagnet into an attached paramagnetic metal.