書誌事項
- タイトル別名
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- Spin Filter Effect of La0.7Sr0.3MnO3/Bi1-xBaxFeO3 Junctions
- La0 7Sr0 3MnO3 Bi1 xBaxFeO3 セツゴウ ニ オケル スピンフィルター コウカ
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Spin-filter devises were fabricated using multiferroic Bi1-xBaxFeO3 films. La1-xSrxMnO3/Bi1-xBaxFeO3/LaNiO3 junctions showed non-linear current-voltage characteristics with barrier height of 0.37eV and magnetoresistance (MR) of 2.3% at 4.2 K. These results indicate ultra-thin Bi1-xBaxFeO3 layers behaved as ferromagnetic tunnel barriers and showed spin-filter effects. From the analysis of the temperature dependence of current-voltage characteristics of the junctions and the leakage current of Bi1-xBaxFeO3 layers, one of possible reasons for low MR is suppression of spin-filter effects by tunneling through defect levels induced by O and/or Bi deficiency in Bi1-xBaxFeO3 tunnel barriers.
収録刊行物
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- Journal of the Magnetics Society of Japan
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Journal of the Magnetics Society of Japan 34 (4), 499-502, 2010
公益社団法人 日本磁気学会
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詳細情報 詳細情報について
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- CRID
- 1390282680262155904
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- NII論文ID
- 130000309319
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- NII書誌ID
- AA12297999
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- ISSN
- 18822932
- 18822924
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- NDL書誌ID
- 10770642
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- 抄録ライセンスフラグ
- 使用不可