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Small Polaron Hopping Conduction in Samples of Ceramic $La_{1.4}Sr_{1.6}Mn_{2}O_{7.06}$
http://hdl.handle.net/10131/5067
http://hdl.handle.net/10131/5067dbfc9753-1cc2-4b9a-915a-0b9584b20e4b
名前 / ファイル | ライセンス | アクション |
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AJP52-1999.pdf (176.6 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2009-12-14 | |||||
タイトル | ||||||
タイトル | Small Polaron Hopping Conduction in Samples of Ceramic $La_{1.4}Sr_{1.6}Mn_{2}O_{7.06}$ | |||||
言語 | ||||||
言語 | eng | |||||
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 | |||||
著者 |
Nakatsugawa, Hiroshi
× Nakatsugawa, Hiroshi× Iguchi, E.× Jung, W. H.× Munakata, F. |
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著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 17467 | |||||
姓名 | ナカツガワ, ヒロシ | |||||
著者別名 | ||||||
識別子Scheme | WEKO | |||||
識別子 | 17468 | |||||
姓名 | 中津川, 博 | |||||
著者所属 | ||||||
Materials Science, Department of Mechanical Engineering and Materials Science, Faculty of Engineering, Yokohama National University, Tokiwadai, Hodogaya-Ku, Yokohama 240, Japan | ||||||
著者所属 | ||||||
Materials Science, Department of Mechanical Engineering and Materials Science, Faculty of Engineering, Yokohama National University, Tokiwadai, Hodogaya-Ku, Yokohama 240, Japan | ||||||
著者所属 | ||||||
Department of Electronics, Howon University | ||||||
著者所属 | ||||||
Nissan Reseach Centre, Nissan Motor Co. | ||||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The ceramic sample of $La_{1・4}Sr_{1・6}Mn_{2}O_{7 · 06}$exhibits the metal-insulator transition and a negative magnetoresustance in the vicinity of the Curie temperature (Tc$simeq$ 100K). The dcmagnetic susveptibility between 100 K and 280 K is nearly constant and decreases gradually eith increasing temperatire above 280 K. The measurements of dc resistivity and the thermoelectric power indicate that small polaron hoppong conduction takes place at T > 280 K.The spin order due to the two-dimensional $d_{x^2-Y^2}$ state occurring at T>280 K is directly related to the hopping conduction above 280 K, although the spin ordering due to the one-dimensional $d_{3z^2-r^2}$ state takes place at T>Tc.The two-dimensional $d_{x^2-y^2}$state ectending within the $MnO_{2}$ sheets starts to narrow and leads to the carrier localisation at 208 K.The effective number of holes in this sample estimated from the thermoelectric power is considerably smaller than the nominal value. This indicates that the small polaron hopping conduction takes olace predominantly within the in-plane $MnO_{2}$ sheets. A discussion is given of the experimental results of the ceramic sample of $La_{2/3}Ca_{1/3}Mno_{2・98}. | |||||
書誌情報 |
Australian Journal of Physics 巻 52, 号 2, p. 187-195, 発行日 1999 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00049506 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00555984 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1071/P98043 | |||||
権利 | ||||||
権利情報 | © CSIRO 1999 | |||||
権利URI | ||||||
権利情報 | http://www.csiro.au/ | http://www.csiro.au/ | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
出版者 | ||||||
出版者 | CSIRO PUBLISHING |