Tuning the Ferromagnetic Coupling of Fe Nanodots on Cu(111) via Dimensionality Variation of the Mediating Electrons
文献类型：期刊论文
| 作者 | Yin, LF ; Xiao, D ; Gai, Z ; Ward, TZ ; Widjaja, N ; Stocks, GM ; Cheng, ZH ; Plummer, EW ; Zhang, ZY ; Shen, J |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2010 |
| 卷号 | 104期号:16 |
| 关键词 | LAYER-ASSISTED GROWTH SURFACE METALS CONFINEMENT IMPURITIES |
| ISSN号 | 0031-9007 |
| 通讯作者 | Shen, J (reprint author), Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. |
| 中文摘要 | Using in situ magneto-optical Kerr effect measurements and phenomenological modeling, we study the tunability in both the magnetization anisotropy and magnetic coupling of Fe nanodots on a curved Cu(111) substrate with varying vicinity. We observe that, as the terrace width w decreases, the magnetization anisotropy increases monotonically, faster when w is smaller than the nanodot size d. In contrast, the magnetic coupling strength also increases until w similar to d, after which it decreases steeply. These striking observations can be rationalized by invoking the counterintuitive dimensionality variation of the surface electrons mediating the interdot coupling: the electrons are confined to be one dimensional (1D) when w >= d, but become quasi-2D when w < d due to enhanced electron spillover across the steps bridged by the nanodots. |
| 收录类别 | SCI |
| 资助信息 | U.S. DOE (Division of Materials Sciences and Engineering, Office of Basic Energy Sciences); CMSN; U.S. NSF [DMR-0906025] |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/46193]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Yin, LF,Xiao, D,Gai, Z,et al. Tuning the Ferromagnetic Coupling of Fe Nanodots on Cu(111) via Dimensionality Variation of the Mediating Electrons[J]. PHYSICAL REVIEW LETTERS,2010,104(16). |
| APA | Yin, LF.,Xiao, D.,Gai, Z.,Ward, TZ.,Widjaja, N.,...&Shen, J.(2010).Tuning the Ferromagnetic Coupling of Fe Nanodots on Cu(111) via Dimensionality Variation of the Mediating Electrons.PHYSICAL REVIEW LETTERS,104(16). |
| MLA | Yin, LF,et al."Tuning the Ferromagnetic Coupling of Fe Nanodots on Cu(111) via Dimensionality Variation of the Mediating Electrons".PHYSICAL REVIEW LETTERS 104.16(2010). |
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来源：物理研究所
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