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Mn-Induced Surface Reconstructions on GaAs(001)
https://uec.repo.nii.ac.jp/records/9393
https://uec.repo.nii.ac.jp/records/9393648624f5-f5c9-4d5d-8117-4c57ef4c26a8
名前 / ファイル | ライセンス | アクション |
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ohtake03 (21.1 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-10-17 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Mn-Induced Surface Reconstructions on GaAs(001) | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題 | Surface Reconstructions | |||||
キーワード | ||||||
言語 | en | |||||
主題 | Diluted Magnetic Semiconductor | |||||
キーワード | ||||||
言語 | en | |||||
主題 | Adsorption | |||||
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 | |||||
著者 |
Ohtake, Akihiro
× Ohtake, Akihiro× Hagiwara, Atsushi× Okukita, Kazuya× Funatsuki, Kenta× Nakamura, Jun |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We have systematically studied the surface reconstructions induced by the adsoprtion of Mn atoms on GaAs(001). Several types of adsorption structures were observed depending on the preparation conditions, and were identified using complementary experimental techniques of reflection high-energy electron diffraction, scanning tunneling microscopy, reflectance difference spectroscopy, and X-ray photoelectron spectroscopy. The sequence of surface structures as a function of As coverage was confirmed by the experiments and first-principles calculations. Under the most Ga-rich conditions, (2 × 2)α and (6 × 2) structures are formed, both having As atoms at faulted sites and Ga–Ga dimers at the third atomic layer. As the As coverage is increased, the structure with Ga–As dimer [(2 × 2)β] becomes more stable, and, finally, the c(4 × 4) structure consisting of three As–As dimers is energetically favored at the As-rich limit. We found that the location of Mn atoms critically depends on the surface As coverage: As-deficient (2 × 2)α, (6 × 2), and (2 × 2)β structures have the Mn atoms at 4-fold hollow sites, while the incorporation of Mn atoms into the substitutional Ga sites is enhanced in the most As-rich c(4 × 4) structure, in which the upper limit of substitutional Mn is 0.25 ML. | |||||
書誌情報 |
en : The Journal of Physical Chemistry C 巻 120, 号 11, p. 6050-6062, 発行日 2016-03-24 |
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出版者 | ||||||
出版者 | American Chemical Society (ACS) | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1932-7447 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1021/acs.jpcc.5b12309 | |||||
権利 | ||||||
権利情報 | This document is the Accepted Manuscript version of a Published Work that appeared in final form in The Journal of Physical Chemistry C, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.jpcc.5b12309. | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1021/acs.jpcc.5b12309 | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa |