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Preparation and characterization of a novel heterostructure of graphene/Co2Fe(Ge0.5Ga0.5)for high-performance spintronic device application
https://repo.qst.go.jp/records/73209
https://repo.qst.go.jp/records/7320916475e41-78d7-427a-a972-ab4a3c4b9cd0
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-10-03 | |||||
| タイトル | ||||||
| タイトル | Preparation and characterization of a novel heterostructure of graphene/Co2Fe(Ge0.5Ga0.5)for high-performance spintronic device application | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_c94f | |||||
| 資源タイプ | conference object | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
李, 松田
× 李, 松田× Larionov, Konstantin× Watanabe, Takahiro× 圓谷, 志郎× Yamada, Yoichi× B. Sorokin, Pavel× V. Avramov, Pavel.× Sakuraba, Yuya× Amemiya, Kenta× Naramoto, Hiroshi× 境, 誠司× Songtian, Li× Entani, Shiro× Sakai, Seiji |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A novel heterostructure consisting of single-layer graphene (SLG) synthesized by high-vacuum chemical vapor deposition (CVD) on a half-metallic Co2Fe(GeGa) (CFGG) Heusler alloy was demonstrated in this work. In the SLG/CFGG heterostructure, comparing with other SLG/ferromagnet systems, the chemical bonding between SLG and CFGG was found to be rather weak through an x-ray absorption spectra study of SLG near the C K-edge, which indicates a quasi-freestanding nature of the SLG synthesized on CFGG. Depth resolved magnetic circular dichroism (XMCD) measurement suggests there is no degradation on the magnetic property of CFGG at the interface of SLG/CFGG heterostructure, which further confirms the physical nature of the interface between SLG and CFGG. First-principle calculation results show the Dirac cone of SLG and half-metallic band structure of CFGG at the interface are both preserved in the SLG/CFGG heterostructure. Those striking features make the SLG/CFGG heterostructure an extremely promising building block for developing high performance spintronic devices such as magnetic field sensor, magnetic random access memory and spin-transistor. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | NIMS Week 2018 | |||||
| 発表年月日 | ||||||
| 日付 | 2018-10-15 | |||||
| 日付タイプ | Issued | |||||
