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The resistivity (ρ), the peak resistivity temperature (Tp), and the temperature coefficient of resistance (TCR=1/R dR/dT) are examined, and compared for the undoped and Fe-doped cases. Fe-doping depresses the Tp value significantly; from \u0026acd;266K for the undoped film to \u0026acd;181K for x=0.10 film, with a concomitant decrease in magnetization, reflecting extended influence of the dopant. The TCR shows a dramatic increase from \u0026acd;11%/K for the undoped film to \u0026acd;16%/K in the Fe-doped films. The saturation value of magnetization (M) shows a drastic decrease from 600emu/cm^3 for the undoped film to 300 emu/cm^3 for the 10% Fe-doped film. 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La 0.7 Ca 0.3 MnO 3薄膜の磁気抵抗に及ぼすFeドーピングの効果
http://hdl.handle.net/10069/5155
http://hdl.handle.net/10069/51550b6817ee-3d35-4841-8852-624c8323e246
名前 / ファイル | ライセンス | アクション |
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KJ00000136547.pdf (338.3 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2007-01-26 | |||||
タイトル | ||||||
タイトル | La 0.7 Ca 0.3 MnO 3薄膜の磁気抵抗に及ぼすFeドーピングの効果 | |||||
言語 | ||||||
言語 | jpn | |||||
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 | departmental bulletin paper | |||||
著者 |
藤島, 友之
× 藤島, 友之× S.B.O, gale× T.Venkatesan, 他 |
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著者別名 | ||||||
姓名 | Fujishima, Tomoyuki | |||||
著者別名 | ||||||
姓名 | S.B.O, gale | |||||
著者別名 | ||||||
姓名 | T, Venkatesan | |||||
その他のタイトル | ||||||
その他のタイトル | Fe Doping Effects on Magnetoresistance of La 0.7 Ca 0.3 MnO 3 Thin Film | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Epitaxial thin films of La_<0.7>Ca_<0.3>Mn_<1-x>Fe_xO_3 (x=0,0.05 and 0.10) are grown on (001) LaAlO_3 substrates by pulsed laser deposition. The resistivity (ρ), the peak resistivity temperature (Tp), and the temperature coefficient of resistance (TCR=1/R dR/dT) are examined, and compared for the undoped and Fe-doped cases. Fe-doping depresses the Tp value significantly; from ∿266K for the undoped film to ∿181K for x=0.10 film, with a concomitant decrease in magnetization, reflecting extended influence of the dopant. The TCR shows a dramatic increase from ∿11%/K for the undoped film to ∿16%/K in the Fe-doped films. The saturation value of magnetization (M) shows a drastic decrease from 600emu/cm^3 for the undoped film to 300 emu/cm^3 for the 10% Fe-doped film. The Magnetoresistance (MR) shows slightly increase from 85% for the undoped film to 98% for the 10% Fe-doped film. | |||||
書誌情報 |
長崎大学工学部研究報告 en : Reports of the Faculty of Engineering, Nagasaki University 巻 31, 号 57, p. 47-50, 発行日 2001-07 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 02860902 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00178418 | |||||
sortkey | ||||||
P00047-P00050 | ||||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 長崎大学工学部研究報告 Vol.31(57) p.47-50, 2001 |