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 |
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論文番号 | 020408 |
ジャーナル | Physical Review B - Condensed Matter and Materials Physics |
巻 | 86 |
号 | 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