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  1. B200 工学部/工学研究科
  2. B200a 雑誌掲載論文
  3. 学術雑誌

Two-dimensional ferromagnetic ordering and magnetoresistance in the layered perovskite La_{2-2x}Ca_{1+2x}Mn_2O_7

http://hdl.handle.net/2237/7141
b2fd7e80-3530-4cd4-9a9c-35d21f4a67cb
名前 / ファイル ライセンス アクション
p5395_1.pdf p5395_1.pdf (193.9 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2006-11-30
タイトル
タイトル Two-dimensional ferromagnetic ordering and magnetoresistance in the layered perovskite La_{2-2x}Ca_{1+2x}Mn_2O_7
著者 Asano, H.

× Asano, H.

WEKO 14349

Asano, H.

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Hayakawa, J.

× Hayakawa, J.

WEKO 14350

Hayakawa, J.

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Matsui, M.

× Matsui, M.

WEKO 14351

Matsui, M.

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権利
権利情報 Copyright: American Physical Society, All rights reserved.
抄録
内容記述 The resistivity and magnetization of layered perovskite La_{2-2x}Ca_{1+2x}Mn_2O_7 have been studied systematically using bulk samples with a wide doping concentration range 0≼x≼0.5 and epitaxial thin film samples with x=0.3. The system becomes a metallic ferromagnet for doping concentrations 0.22≼x≼0.5. In this doping region, results for bulk samples as well as for thin films have clearly shown that there are two types of ferromagnetic ordering, possibly originating from an anisotropic exchange interaction. Magnetoresistance is observed over a wide temperature range below the ferromagnetic ordering temperatures. Based on these results, a model of temperature-dependent spin ordering is presented for a double perovskite ferromagnet, which suggests that there is a two-dimensional ferromagnetic alignment at temperatures between the two ordering temperatures.
内容記述タイプ Abstract
出版者
出版者 The American Physical Society
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
DOI
関連識別子
識別子タイプ DOI
関連識別子 http://dx.doi.org/10.1103/PhysRevB.56.5395
ISSN
収録物識別子タイプ ISSN
収録物識別子 1098-0121
書誌情報 Physical Review B

巻 56, 号 9, p. 5395-5403, 発行日 1997-09
フォーマット
application/pdf
著者版フラグ
値 publisher
URI
識別子 http://hdl.handle.net/2237/7141
識別子タイプ HDL
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