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Polar surface engineering in ultrathin MgO(111)∕Ag(111) : Possibility of a metal-insulator transition and magnetism
Title: | Polar surface engineering in ultrathin MgO(111)∕Ag(111) : Possibility of a metal-insulator transition and magnetism |
Authors: | Arita, Ryotaro Browse this author | Tanida, Yoshiaki Browse this author | Entani, Shiro Browse this author | Kiguchi, Manabu Browse this author | Saiki, Koichiro Browse this author | Aoki, Hideo Browse this author |
Issue Date: | 30-Jun-2004 |
Publisher: | American Physical Society |
Journal Title: | Physical Review B |
Volume: | 69 |
Issue: | 23 |
Start Page: | 235423 |
Publisher DOI: | 10.1103/PhysRevB.69.235423 |
Abstract: | A recent report [Kiguchi et al., Phys. Rev. B 68, 115402 (2003)] that the (111) surface of 5 MgO layers grown epitaxially on Ag(111) becomes metallic raises a question of what will happen when we have fewer MgO layers. Here we have revealed, first experimentally with electron energy-loss spectroscopy, that MgO(111) remains metallic even when one-layer thick. We have confirmed this theoretically with the density functional theory, where metallization turns out to depend on the nature of the substrate. We finally predict, with a spin-density functional calculation, that a magnetic polar surface can be possible. |
Rights: | Copyright © 2004 American Physical Society |
Relation: | http://www.aps.org/ |
Type: | article |
URI: | http://hdl.handle.net/2115/29773 |
Appears in Collections: | 理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 木口 学
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