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Exciton Transport in the Electron–Hole System Ta2NiSe5
http://hdl.handle.net/2237/00031500
http://hdl.handle.net/2237/000315009b684fe3-80a3-4f8e-99e1-47e1377fccc3
名前 / ファイル | ライセンス | アクション |
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maintext_revised (499.0 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-02-13 | |||||
タイトル | ||||||
タイトル | Exciton Transport in the Electron–Hole System Ta2NiSe5 | |||||
言語 | en | |||||
著者 |
Nakano, Akitoshi
× Nakano, Akitoshi× Nagai, Takayuki× Katayama, Naoyuki× Sawa, Hiroshi× Taniguchi, Hiroki× Terasaki, Ichiro |
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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 | Copyright ©2019 The Physical Society of Japan 日本物理学会 | |||||
抄録 | ||||||
内容記述 | We have measured the dielectric constant and thermopower of single crystal samples of the excitonic insulator candidate Ta2NiSe5. The dielectric constant below 50 K shows relaxor-like relaxation, implying the existence of randomly distributed electric dipoles. We have evaluated the concentration of the dipoles to be 10^19 cm^−3 at 30 K, which gives a rough estimate of the exciton concentration in this compound. A large thermopower of 600 µV/K at 100 K suddenly drops toward zero down to 50 K, and this zero thermopower evidences the neutral particles flow against the applied temperature gradient. We have semi-quantitatively explained the above two anomalies in terms of spontaneously generated excitons at low temperatures where thermally excited holes are quenched. | |||||
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:2020/11/15 | |||||
言語 | ja | |||||
内容記述タイプ | Other | |||||
出版者 | ||||||
言語 | ja | |||||
出版者 | 日本物理学会 | |||||
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/10.7566/JPSJ.88.113706 | |||||
ISSN(print) | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0031-9015 | |||||
書誌情報 |
en : Journal of the Physical Society of Japan 巻 88, 号 11, p. 113706, 発行日 2019-11-15 |
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著者版フラグ | ||||||
値 | author |