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Size Effects on Magnetic Property and Crystal Structure of Mn3O4 Nanoparticles in Mesoporous Silica
http://hdl.handle.net/10228/00007073
http://hdl.handle.net/10228/00007073f044fbde-5f1c-4205-a035-17d9251dbfdb
名前 / ファイル | ライセンス | アクション |
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scunit-2018_18.pdf (154.3 kB)
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Item type | 会議発表論文 = Conference Paper(1) | |||||||||||||||||
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公開日 | 2019-03-14 | |||||||||||||||||
資源タイプ | ||||||||||||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||||||||||||||
資源タイプ | conference paper | |||||||||||||||||
タイトル | ||||||||||||||||||
言語 | en | |||||||||||||||||
タイトル | Size Effects on Magnetic Property and Crystal Structure of Mn3O4 Nanoparticles in Mesoporous Silica | |||||||||||||||||
その他のタイトル | ||||||||||||||||||
その他のタイトル | SIZE EFFECTS ON MAGNETIC PROPERTY AND CRYSTAL STRUCTURE OF MN3O4 NANOPARTICLES IN MESOPOROUS SILICA | |||||||||||||||||
言語 | en | |||||||||||||||||
言語 | ||||||||||||||||||
言語 | eng | |||||||||||||||||
著者 |
Tajiri, Takayuki
× Tajiri, Takayuki× Sakai, Koji× 出口, 博之
WEKO
1115
× 美藤, 正樹
WEKO
1968
× Kohno, Atsushi |
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抄録 | ||||||||||||||||||
内容記述タイプ | Abstract | |||||||||||||||||
内容記述 | Mn3O4 nanoparticles with particle sizes of 7.8, 11.4, and 18.3 nm were synthesized in the pores of mesoporous silica, and their crystal structure and magnetic properties were investigated. The powder X-ray diffractions at room temperature indicated that the crystal structural symmetry was the same as that for bulk crystal, and the lattice constants deviated from those for bulk crystal, which depended on the particle size. In addition, compared with the bulk crystal, the Jahn-Teller distortion for the nanoparticles was suppressed and decreased with decreasing the particle size. The coercive field for 7.8 nm was rather smaller than those for 11.4 and 18.3 nm. The nanoparticles with 11.4 and 18.3 nm exhibited pronounced three kinds of magnetic transition temperatures, whereas the susceptibility for 7.8 nm indicated the existence of two transition temperatures. These experimental results suggested that the Mn3O4 nanoparticles have a strong correlation between crystallographic structure and magnetic property, and the characteristic magnetic size effects are attributed to the reduction of Jahn-Teller distortion. | |||||||||||||||||
言語 | en | |||||||||||||||||
備考 | ||||||||||||||||||
内容記述タイプ | Other | |||||||||||||||||
内容記述 | The 21st International Conference on Magnetism (ICM2018), July 15-20, 2018, San Francisco, USA | |||||||||||||||||
書誌情報 |
en : IEEE Transactions on Magnetics 巻 55, 号 2, 発行日 2018-07-17 |
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出版社 | ||||||||||||||||||
出版社 | IEEE | |||||||||||||||||
DOI | ||||||||||||||||||
関連タイプ | isVersionOf | |||||||||||||||||
識別子タイプ | DOI | |||||||||||||||||
関連識別子 | https://doi.org/10.1109/TMAG.2018.2859950 | |||||||||||||||||
NCID | ||||||||||||||||||
収録物識別子タイプ | NCID | |||||||||||||||||
収録物識別子 | AA00667933 | |||||||||||||||||
ISSN | ||||||||||||||||||
収録物識別子タイプ | EISSN | |||||||||||||||||
収録物識別子 | 1941-0069 | |||||||||||||||||
ISSN | ||||||||||||||||||
収録物識別子タイプ | PISSN | |||||||||||||||||
収録物識別子 | 0018-9464 | |||||||||||||||||
著作権関連情報 | ||||||||||||||||||
権利情報 | Copyright (c) 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | Crystal structure | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | Lattice distortion | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | magnetic property | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | Nanoparticles | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
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 | ||||||||||||||||||
7569 |