https://scholars.lib.ntu.edu.tw/handle/123456789/293294
標題: | Surface electronic and magnetic properties of semiconductor FeSi | 作者: | GUANG-YU GUO | 關鍵字: | Density of states; FeSi; Magnetism; Surface; Thin films | 公開日期: | 2001 | 卷: | 10 | 期: | 1-3 | 起(迄)頁: | 383-386 | 來源出版物: | Physica E: Low-Dimensional Systems and Nanostructures | 摘要: | First-principles local spin-density functional calculations of the electronic and magnetic properties of semiconducting FeSi (111) surface with both Fe- and Si-terminations have been performed. It is found that the Fe-terminated (1 1 1) surface is strongly ferromagnetic with a magnetic moment of 2.6μB/atom on the top Fe monolayer while the Si-terminated (111) surface is only weakly magnetic or nonmagnetic. These interesting results suggest that a semiconductor-based spintronics device might be developed by using thin FeSi (1 1 1) films connected to a metal lead on the Fe-terminated surface and to a semiconductor substrate on the Si-terminated surface. © 2001 Elsevier Science B.V. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-0035339442&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/293294 |
ISSN: | 13869477 | DOI: | 10.1016/S1386-9477(01)00121-7 | SDG/關鍵字: | Crystal orientation; Electronic density of states; Ferromagnetic materials; Iron compounds; Magnetic moments; Magnetic semiconductors; Magnetic thin films; Probability density function; First-principle local spin-density functional; Semiconducting films |
顯示於: | 物理學系 |
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