Ferromagnetic interlayer coupling in C60-Co compound/Ni bilayer structure

Yoshihiro Matsumoto; Seiji Sakai; Shiro Entani; Yasumasa Takagi; Takeshi Nakagawa; Hiroshi Naramoto; Pavel Avramov; Toshihiko Yokoyama

doi:10.1016/j.cplett.2011.05.038

Ferromagnetic interlayer coupling in C₆₀-Co compound/Ni bilayer structure

Yoshihiro Matsumoto, Seiji Sakai, Shiro Entani, Yasumasa Takagi, Takeshi Nakagawa, Hiroshi Naramoto, Pavel Avramov, Toshihiko Yokoyama

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

X-ray magnetic circular dichroism (XMCD) spectroscopy was employed to investigate the electronic and magnetic structures of the bilayers of a C ₆₀-Co compound and Ni. A few-several nm thick C₆₀-Co compound layers on the Ni(1 1 1) surface are found to show intense XMCD signals attributed to the localized Co d-spins only with the remanent magnetization of Ni layer. It is suggested that the region of the C₆₀-Co compound within 3 nm from the interface is ferromagnetically coupled with Ni due to the indirect exchange interaction mediated by C₆₀, probably relevant to the interlayer charge transfer.

Original language	English
Pages (from-to)	68-72
Number of pages	5
Journal	Chemical Physics Letters
Volume	511
Issue number	1-3
DOIs	https://doi.org/10.1016/j.cplett.2011.05.038
Publication status	Published - Jul 26 2011
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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10.1016/j.cplett.2011.05.038

Cite this

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title = "Ferromagnetic interlayer coupling in C60-Co compound/Ni bilayer structure",

abstract = "X-ray magnetic circular dichroism (XMCD) spectroscopy was employed to investigate the electronic and magnetic structures of the bilayers of a C 60-Co compound and Ni. A few-several nm thick C60-Co compound layers on the Ni(1 1 1) surface are found to show intense XMCD signals attributed to the localized Co d-spins only with the remanent magnetization of Ni layer. It is suggested that the region of the C60-Co compound within 3 nm from the interface is ferromagnetically coupled with Ni due to the indirect exchange interaction mediated by C60, probably relevant to the interlayer charge transfer.",

author = "Yoshihiro Matsumoto and Seiji Sakai and Shiro Entani and Yasumasa Takagi and Takeshi Nakagawa and Hiroshi Naramoto and Pavel Avramov and Toshihiko Yokoyama",

note = "Funding Information: This study is partly supported by a Grant-in-Aid for Scientific Research ( 19360290, 22740206 and 22760033 ) from MEXT of Japan and the Nanotechnology Support Project in Central Japan (Institute for Molecular Science) . We appreciate ASRC for the cooperation and useful discussions.",

year = "2011",

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doi = "10.1016/j.cplett.2011.05.038",

language = "English",

volume = "511",

pages = "68--72",

journal = "Chemical Physics Letters",

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number = "1-3",

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TY - JOUR

T1 - Ferromagnetic interlayer coupling in C60-Co compound/Ni bilayer structure

AU - Matsumoto, Yoshihiro

AU - Sakai, Seiji

AU - Entani, Shiro

AU - Takagi, Yasumasa

AU - Nakagawa, Takeshi

AU - Naramoto, Hiroshi

AU - Avramov, Pavel

AU - Yokoyama, Toshihiko

N1 - Funding Information: This study is partly supported by a Grant-in-Aid for Scientific Research ( 19360290, 22740206 and 22760033 ) from MEXT of Japan and the Nanotechnology Support Project in Central Japan (Institute for Molecular Science) . We appreciate ASRC for the cooperation and useful discussions.

PY - 2011/7/26

Y1 - 2011/7/26

N2 - X-ray magnetic circular dichroism (XMCD) spectroscopy was employed to investigate the electronic and magnetic structures of the bilayers of a C 60-Co compound and Ni. A few-several nm thick C60-Co compound layers on the Ni(1 1 1) surface are found to show intense XMCD signals attributed to the localized Co d-spins only with the remanent magnetization of Ni layer. It is suggested that the region of the C60-Co compound within 3 nm from the interface is ferromagnetically coupled with Ni due to the indirect exchange interaction mediated by C60, probably relevant to the interlayer charge transfer.

AB - X-ray magnetic circular dichroism (XMCD) spectroscopy was employed to investigate the electronic and magnetic structures of the bilayers of a C 60-Co compound and Ni. A few-several nm thick C60-Co compound layers on the Ni(1 1 1) surface are found to show intense XMCD signals attributed to the localized Co d-spins only with the remanent magnetization of Ni layer. It is suggested that the region of the C60-Co compound within 3 nm from the interface is ferromagnetically coupled with Ni due to the indirect exchange interaction mediated by C60, probably relevant to the interlayer charge transfer.

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DO - 10.1016/j.cplett.2011.05.038

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SN - 0009-2614

VL - 511

SP - 68

EP - 72

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-3

ER -

Ferromagnetic interlayer coupling in C₆₀-Co compound/Ni bilayer structure

Abstract

All Science Journal Classification (ASJC) codes

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