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Extrinsic Surface Magnetic Anisotropy Contribution in Pt/Y3Fe5O12 Interface in Longitudinal Spin Seebeck Effect by Graphene Interlayer.
Lee, Won-Yong; Park, No-Won; Kang, Min-Sung; Kim, Gil-Sung; Yoon, Young-Gui; Lee, Suheon; Choi, Kwang-Yong; Kim, Keun Soo; Kim, Jin-Hyuk; Seong, Maeng-Je; Kikkawa, Takashi; Saitoh, Eiji; Lee, Sang-Kwon.
Afiliación
  • Lee WY; Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea.
  • Park NW; Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea.
  • Kang MS; Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea.
  • Kim GS; Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea.
  • Yoon YG; Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea.
  • Lee S; Deopartment of Physics, Sungkyunkwan University, Suwon 16419, Republic of Korea.
  • Choi KY; Deopartment of Physics, Sungkyunkwan University, Suwon 16419, Republic of Korea.
  • Kim KS; Department of Physics and Astronomy, Sejong University, Seoul 05006, Republic of Korea.
  • Kim JH; Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea.
  • Seong MJ; Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea.
  • Kikkawa T; Department of Applied Physics, The University of Tokyo, Tokyo 113-8656, Japan.
  • Saitoh E; Department of Applied Physics, The University of Tokyo, Tokyo 113-8656, Japan.
  • Lee SK; WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
ACS Appl Mater Interfaces ; 13(37): 45097-45104, 2021 Sep 22.
Article en En | MEDLINE | ID: mdl-34496563
A recent study found that magnetization curves for Y3Fe5O12 (YIG) slab and thick films (>20 µm thick) differed from bulk system curves by their longitudinal spin Seebeck effect in a Pt/YIG bilayer system. The deviation was due to intrinsic YIG surface magnetic anisotropy, which is difficult to adopt extrinsic surface magnetic anisotropy even when in contact with other materials on the YIG surface. This study experimentally demonstrates evidence for extrinsic YIG surface magnetic anisotropy when in contact with a diamagnetic graphene interlayer by observing the spin Seebeck effect, directly proving intrinsic YIG surface magnetic anisotropy interruption. We show the Pt/YIG bilayer system graphene interlayer role using large area single and multilayered graphenes using the longitudinal spin Seebeck effect at room temperature, and address the presence of surface magnetic anisotropy due to magnetic proximity between graphene and YIG layer. These findings suggest a promising route to understand new physics of spin Seebeck effect in spin transport.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2021 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
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Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2021 Tipo del documento: Article Pais de publicación: Estados Unidos