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Infrared spectroscopy on electronic structures of platinum-group metal pernitrides MN2 (M=Ru, Rh, Ir, and Pt)
http://hdl.handle.net/2237/00030422
http://hdl.handle.net/2237/00030422040ea38b-19ed-475c-8e98-9cc6d77a6fd7
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-06-12 | |||||
タイトル | ||||||
タイトル | Infrared spectroscopy on electronic structures of platinum-group metal pernitrides MN2 (M=Ru, Rh, Ir, and Pt) | |||||
言語 | en | |||||
著者 |
Soda, Kazuo
× Soda, Kazuo× Komabuchi, Mai× Maeguchi, Keisuke× Kato, Masahiko× Terabe, Toshiki× Niwa, Ken× Hasegawa, Masashi× Ikemoto, Yuka× Okamura, Hidekazu |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Infrared reflectance spectra | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | First-principles calculation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Platinum-group metal pernitride | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Valence band electronic structure | |||||
抄録 | ||||||
内容記述 | The electronic structures of platinum-group metal pernitrides MN2 (M = Ru, Rh, Ir, and Pt) were investigated via synchrotron radiation infrared spectroscopy and first-principles calculations. Measured reflectance spectra of marcasite-type RuN2 and RhN2 showed Drude-like responses, approaching 1 as the photon energy was decreased, whereas reflectance of arsenopyrite-type IrN2 and pyrite-type PtN2 became ∼0.3 in the low photon energy region with a few features. These findings agreed well with the predictions of the metallic nature of marcasite-type RuN2 and RhN2 and the semiconducting properties of arsenopyrite-type IrN2 and pyrite-type PtN2, respectively. The measured reflectance spectra were also reasonably consistent with the calculated optical responses. The band gaps of IrN2 and PtN2 were estimated to be 0.8 and 2.1 eV, respectively, via first-principles calculation with a modified Becke–Johnson (MBJ) potential for the exchange potential. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
内容記述 | ||||||
内容記述 | ファイル公開:2021-04-01 | |||||
言語 | ja | |||||
内容記述タイプ | Other | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | Elsevier | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
出版タイプ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1016/j.physb.2019.01.017 | |||||
ISSN(print) | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0921-4526 | |||||
書誌情報 |
en : Physica B: Condensed Matter 巻 558, p. 54-58, 発行日 2019-04-01 |
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著者版フラグ | ||||||
値 | author |