Shot noise in magnetic tunnel junctions from first principles

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

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
86
2
DOI
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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