WEKO3
アイテム
Carrier doping effect of magnetic and transport properties on the geometrically frustrated iridate Ca5Ir3O12
http://hdl.handle.net/10228/00007985
http://hdl.handle.net/10228/00007985d1997ee3-809e-4904-aa34-fcddbdfde27f
| 名前 / ファイル | ライセンス | アクション |
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scunit-2019_04.pdf (1.8 MB)
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| アイテムタイプ | 学術雑誌論文 = Journal Article(1) | |||||||||||||
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| 公開日 | 2020-12-14 | |||||||||||||
| 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 | ||||||||||||||
| タイトル | Carrier doping effect of magnetic and transport properties on the geometrically frustrated iridate Ca5Ir3O12 | |||||||||||||
| 言語 | en | |||||||||||||
| 言語 | ||||||||||||||
| 言語 | eng | |||||||||||||
| 著者 |
Haneta, Sho
× Haneta, Sho× Yasukuni, Yuki× Oka, Chiharu× Wakeshima, Makoto× Hinatsu, Yukio× 松平, 和之
WEKO
20843
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| 抄録 | ||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||
| 内容記述 | We show the carrier doping effect on magnetic and transport properties of Ca5Ir3O12, indicating semiconductivity and an antiferromagnetic ordering below Néel temperature TN = 7.8 K. The average valence of Ir ions in Ca5Ir3O12 is +4.67. Carrier doping for 5d electrons of Ir ions is achieved by substitution of Ca2+ by Na+, La3+, and Bi3+; Na substitution leads to hole doping, and La or Bi substitution leads to electron doping. The electrical resistivity decreases in both case of the hole doping or the electron doping. For La10% doped samples, TN does not change but Curie–Weiss temperature ΘCW becomes 3.5 times larger than 9.9 K for Ca5Ir3O12. For Bi10% doped samples, TN decreases to 5 K but ΘCW becomes 3 times larger than that of undoped compound. On the other hand, for Na10% doped samples, TN decreases to 4 K and ΘCW decreases to 8.3 K. The frustration index f which is defined by ΘCW /TN is enhanced by electron doping. The magnetic frustration becomes stronger with increase of filling of Ir 5d electrons on the triangular lattice. | |||||||||||||
| 書誌情報 |
en : Journal of Magnetism and Magnetic Materials 巻 476, p. 274-277, 発行日 2018-12-13 |
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| 出版社 | ||||||||||||||
| 出版者 | Elsevier | |||||||||||||
| DOI | ||||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||||
| 識別子タイプ | DOI | |||||||||||||
| 関連識別子 | https://doi.org/10.1016/j.jmmm.2018.12.023 | |||||||||||||
| 日本十進分類法 | ||||||||||||||
| 主題Scheme | NDC | |||||||||||||
| 主題 | 540 | |||||||||||||
| ISSN | ||||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||||
| 収録物識別子 | 0304-8853 | |||||||||||||
| ISSN | ||||||||||||||
| 収録物識別子タイプ | EISSN | |||||||||||||
| 収録物識別子 | 1873-4766 | |||||||||||||
| 著作権関連情報 | ||||||||||||||
| 権利情報 | Copyright (c) 2018 Elsevier B.V. All rights reserved. | |||||||||||||
| キーワード | ||||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | Iridates | |||||||||||||
| キーワード | ||||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | Frustration | |||||||||||||
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| 主題Scheme | Other | |||||||||||||
| 主題 | Thermoelectric power | |||||||||||||
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| 主題Scheme | Other | |||||||||||||
| 主題 | Resistivity | |||||||||||||
| キーワード | ||||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | Frustration index | |||||||||||||
| 出版タイプ | ||||||||||||||
| 出版タイプ | VoR | |||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||
| 査読の有無 | ||||||||||||||
| 値 | yes | |||||||||||||
| 連携ID | ||||||||||||||
| 値 | 7811 | |||||||||||||
