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Nonlinear Conductivity of Geometrically Frustrated Iridate Ca5Ir3O12
http://hdl.handle.net/10228/00007000
http://hdl.handle.net/10228/0000700076040ef6-8d91-4192-86a1-6b492e1869aa
名前 / ファイル | ライセンス | アクション |
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scunit-2018_08.pdf (2.0 MB)
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Item type | 学術雑誌論文 = Journal Article(1) | |||||||||||||||||
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公開日 | 2018-12-07 | |||||||||||||||||
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 | |||||||||||||||||
タイトル | ||||||||||||||||||
言語 | en | |||||||||||||||||
タイトル | Nonlinear Conductivity of Geometrically Frustrated Iridate Ca5Ir3O12 | |||||||||||||||||
言語 | ||||||||||||||||||
言語 | eng | |||||||||||||||||
著者 |
松平, 和之
× 松平, 和之
WEKO
20843
× 中村, 和磨
WEKO
20202
× Yasukuni, Yuki× Yoshimoto, Yoshihide× Hirai, Daigorou× Hiroi, Zenji |
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抄録 | ||||||||||||||||||
内容記述タイプ | Abstract | |||||||||||||||||
内容記述 | We report the discovery of nonlinear conductivity along the c-axis in a single crystal of Ca5Ir3O12, which indicates a semiconducting behavior with a narrow band gap of ∼0.2 eV. The resistivity decreases with increase in the applied current. This nonlinearity is reversible with the direction of current. We also show the ab initio density functional band structures and the Fermi surface. We found that the spin–orbit interactions result in an appreciable change in the low-energy electronic structure; the interaction splits the metallic bands and leads to a pocket-like band structure, thus reducing the metallic trend. The size of the spin–orbit interaction is estimated as ∼0.3 eV, which is large enough to be comparable to the valence bandwidth of ∼0.5 eV. The Fermi surface exhibits a sheet structure along the c*-axis, due to the 1D chain structure of edge-sharing IrO6. | |||||||||||||||||
言語 | en | |||||||||||||||||
書誌情報 |
en : Journal of the Physical Society of Japan 巻 87, 号 1, p. 013703-1-013703-5, 発行日 2017-12-07 |
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言語 | ja | |||||||||||||||||
出版者 | 日本物理学会 | |||||||||||||||||
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.87.013703 | |||||||||||||||||
CRID | ||||||||||||||||||
関連タイプ | isVersionOf | |||||||||||||||||
識別子タイプ | URI | |||||||||||||||||
関連識別子 | https://cir.nii.ac.jp/crid/1523951029877096960 | |||||||||||||||||
日本十進分類法 | ||||||||||||||||||
主題Scheme | NDC | |||||||||||||||||
主題 | 541 | |||||||||||||||||
NCID | ||||||||||||||||||
収録物識別子タイプ | NCID | |||||||||||||||||
収録物識別子 | AA00704814 | |||||||||||||||||
ISSN | ||||||||||||||||||
収録物識別子タイプ | EISSN | |||||||||||||||||
収録物識別子 | 1347-4073 | |||||||||||||||||
ISSN | ||||||||||||||||||
収録物識別子タイプ | PISSN | |||||||||||||||||
収録物識別子 | 1347-4073 | |||||||||||||||||
著作権関連情報 | ||||||||||||||||||
権利情報 | Copyright (c) 2018 The Physical Society of Japan | |||||||||||||||||
出版タイプ | ||||||||||||||||||
出版タイプ | AM | |||||||||||||||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||||||
査読の有無 | ||||||||||||||||||
値 | yes | |||||||||||||||||
連携ID | ||||||||||||||||||
6950 |