Shot noise in magnetic tunnel junctions from first principles

Kai Liu; Ke Xia; Gerrit E.W. Bauer

doi:10.1103/PhysRevB.86.020408

Shot noise in magnetic tunnel junctions from first principles

Kai Liu, Ke Xia, Gerrit E.W. Bauer

材料科学高等研究所

研究成果: Article › 査読

17 被引用数 (Scopus)

抄録

We compute the shot noise in ballistic and disordered Fe|MgO|Fe tunnel junctions by a wave-function-matching method. For tunnel barriers with 5 atomic layers we find a suppression of the Fano factor as a function of the magnetic configuration. In the antiparallel configuration the shot noise is full up to a threshold bias that indicates the onset of resonant tunneling. We find excellent agreement with recent experiments when interface disorder is taken into account.

本文言語	English
論文番号	020408
ジャーナル	Physical Review B - Condensed Matter and Materials Physics
巻	86
号	2
DOI	https://doi.org/10.1103/PhysRevB.86.020408
出版ステータス	Published - 2012 7月 26

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
凝縮系物理学

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10.1103/PhysRevB.86.020408

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Shot noise in magnetic tunnel junctions from first principles

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