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First-principles theory of quantum well resonance in double barrier magnetic tunnel junctions
Wang, Yan; Lu, Zhong-Yi; Zhang, X. -G.; Han, X. F.; Zhang, XG , Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA
2006
发表期刊PHYSICAL REVIEW LETTERS
ISSN0031-9007
卷号97期号:8页码:-
摘要Quantum well (QW) resonances in Fe(001)/MgO/Fe/MgO/Fe double barrier magnetic tunnel junctions are calculated from first principles. By including the Coulomb blockade energy due to the finite size islands of the middle Fe film, we confirm that the oscillatory differential resistance observed in a recent experiment [T. Nozaki , Phys. Rev. Lett. 96, 027208 (2006)] originates from the QW resonances from the Delta(1) band of the Fe majority-spin channel. The primary source of smearing at low temperatures is shown to be the variation of the Coulomb blockade energy.
部门归属Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA; Oak Ridge Natl Lab, Div Math & Comp Sci, Oak Ridge, TN 37831 USA; Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, State Key Lab Magnetism, Beijing 100080, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Room-temperature Magnetoresistance Single Layer
学科领域Physics
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收录类别SCI
WOS记录号WOS:000240043800056
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被引频次:32[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5921
专题理论物理所SCI论文
通讯作者Zhang, XG , Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA
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Wang, Yan,Lu, Zhong-Yi,Zhang, X. -G.,et al. First-principles theory of quantum well resonance in double barrier magnetic tunnel junctions[J]. PHYSICAL REVIEW LETTERS,2006,97(8):-.
APA Wang, Yan,Lu, Zhong-Yi,Zhang, X. -G.,Han, X. F.,&Zhang, XG , Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.(2006).First-principles theory of quantum well resonance in double barrier magnetic tunnel junctions.PHYSICAL REVIEW LETTERS,97(8),-.
MLA Wang, Yan,et al."First-principles theory of quantum well resonance in double barrier magnetic tunnel junctions".PHYSICAL REVIEW LETTERS 97.8(2006):-.
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