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Ising ferromagnetism and robust half-metallicity in two-dimensional honeycomb-kagome Cr2O3 layer
https://repo.qst.go.jp/records/80954
https://repo.qst.go.jp/records/809542e401479-02dd-4b87-b00e-55747609299d
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-07-15 | |||||
| タイトル | ||||||
| タイトル | Ising ferromagnetism and robust half-metallicity in two-dimensional honeycomb-kagome Cr2O3 layer | |||||
| 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_6501 | |||||
| 資源タイプ | journal article | |||||
| 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 |
Hashmi
× Hashmi× Nakanishi, Kenta× Umar Farooq, Muhammad× Ono, Tomoya× Hashmi, Arqum |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In contrast to the current research on two-dimensional (2D) materials, which is mainly focused on graphene and transition metal dichalcogenide-like structures, studies on 2D transition metal oxides are rare. By using ab initio calculations along with Monte Carlo simulations and nonequilibrium Green’s function method, we demonstrate that the transition metal oxide monolayer (ML) of Cr2O3 is an ideal candidate for next-generation spintronics applications. 2D Cr2O3 has honeycomb-kagome lattice, where the Dirac and strongly correlated fermions coexist around the Fermi level. Furthermore, the spin exchange coupling constant shows strong ferromagnetic (FM) interaction between Cr atoms. Cr2O3 ML has a robust half-metallic behavior with a large spin gap of ~3.9 eV and adequate Curie temperature. Interestingly, an intrinsic Ising FM characteristic is observed with a giant perpendicular magnetocrystalline anisotropy energy of ~0.9 meV. Most remarkably, nonequilibrium Green’s function calculations reveal that the Cr2O3 ML exhibits an excellent spin filtering effect. | |||||
| 書誌情報 |
npj 2D Materials and Applications 巻 4, p. 39, 発行日 2020-11 |
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| 出版者 | ||||||
| 出版者 | Nature | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2397-7132 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1038/s41699-020-00174-0 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.nature.com/articles/s41699-020-00174-0 | |||||
