Ｂｉ添加ＬａＭｎＯ３のＸＰＳ分析と磁性

• 小川 卓

  東海大学大学院工学研究科

• 進藤 春雄

  東海大学大学院工学研究科

• 竹内 宏昌

  東海大学大学院工学研究科

• 小泉 義晴

  東海大学大学院工学研究科

書誌事項

タイトル別名

• X-ray Photoemission Spectroscopy and Magnetic Properties of Bi Doped LaMnO3
• Bi テンカ LaMnO3 ノ XPS ブンセキ ト ジセイ

抄録

Perovskite-type La_1−xBi_xMnO₃ (LBMO), which are prepared by doping the Bismuth (Bi) ion in LaMnO₃, were shown to exhibit the colossal magnetoresistance (CMR) effect. Samples were produced using a sintering process in an air atmosphere as a function of the Bi composition ratio x. X-ray diffraction measurements showed that the LBMO crystal structure varied among an orthorhombic (or rhombohedral) type with 0.0<x<0.3, to a cubic type with 0.3<x<0.5, and to a monoclinic type with for 0.5<x. The CMR effect of LBMO for x=0.2 was approximately 400% at 140 K. In addition, the magnetoresistance of the LBMO system was found to be proportional to the square of the magnetization. It was interpreted that, from XPS analysis, the valence states of manganese and bismuth atoms in LBMO contain [Mn³⁺,Mn⁴⁺] and [Bi³⁺, Bi²⁺ (or pseudo-divalent Bismuth)] ionic states.

収録刊行物

• 表面科学

  表面科学 27 (9), 511-517, 2006

  公益社団法人 日本表面科学会

詳細情報

• CRID: 1390001206457755136
• NII論文ID: 10018051649
• NII書誌ID: AN00334149
• DOI: 10.1380/jsssj.27.511
• COI: 1:CAS:528:DC%2BD28Xht1Wgtr3L
• ISSN: 18814743
• ISSN: 03885321
• NDL書誌ID: 8091007
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8091007
• Web Site: http://www.jstage.jst.go.jp/article/jsssj/27/9/27_9_511/_pdf
• 本文言語コード: ja
• データソース種別:
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  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可