T
Takashi Kikkawa
Researcher at Tohoku University
Publications - 85
Citations - 3423
Takashi Kikkawa is an academic researcher from Tohoku University. The author has contributed to research in topics: Thermoelectric effect & Magnon. The author has an hindex of 29, co-authored 68 publications receiving 2763 citations. Previous affiliations of Takashi Kikkawa include University of Tokyo.
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Journal ArticleDOI
Longitudinal Spin Seebeck Effect Free from the Proximity Nernst Effect
Takashi Kikkawa,Ken-ichi Uchida,Ken-ichi Uchida,Yuki Shiomi,Zhiyong Qiu,Dazhi Hou,Dai Tian,Hiroyasu Nakayama,Xiaofeng Jin,Eiji Saitoh +9 more
TL;DR: There is evidence for intrinsic longitudinal spin Seebeck effects (LSSEs) that are free from the anomalous Nernst effect (ANE) caused by an extrinsic proximity effect in Au/Y(3)Fe(5)O(12) (YIG) and Pt/Cu/YIG systems.
Journal ArticleDOI
Longitudinal spin Seebeck effect: from fundamentals to applications
TL;DR: Basic experiments on the LSSE in insulators provide a novel and versatile pathway to thermoelectric generation in combination of the inverse spin-Hall effects.
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Thermoelectric generation based on spin Seebeck effects
Ken-ichi Uchida,Hiroto Adachi,Takashi Kikkawa,Akihiro Kirihara,Masahiko Ishida,Shinichi Yorozu,Sadamichi Maekawa,Eiji Saitoh +7 more
TL;DR: A theory of the thermoelectric conversion efficiency of the SSE device is presented, which clarifies the difference between the S SE and conventional thermoelectedric effects and the efficiency limit of theSSE device.
Journal ArticleDOI
Critical suppression of spin Seebeck effect by magnetic fields
Takashi Kikkawa,Ken-ichi Uchida,Ken-ichi Uchida,Shunsuke Daimon,Zhiyong Qiu,Yuki Shiomi,Eiji Saitoh +6 more
TL;DR: In this paper, the longitudinal spin Seebeck effect (LSSE) in a Pt/YIG-slab system is suppressed by applying high magnetic fields and this suppression is critically enhanced at low temperatures.
Journal ArticleDOI
Thermoelectric Generation Based on Spin Seebeck Effects
Ken-ichi Uchida,Hiroto Adachi,Takashi Kikkawa,Akihiro Kirihara,Masahiko Ishida,Shinichi Yorozu,Sadamichi Maekawa,Eiji Saitoh +7 more
TL;DR: The spin Seebeck effect (SSE) refers to the generation of a spin current as a result of a temperature gradient in magnetic materials including insulators as discussed by the authors, which is applicable to thermoelectric generation because the thermally generated spin current can be converted into a charge current via spin-orbit interaction in conductive materials adjacent to the magnets.