Observation of full shot noise in CoFeB/MgO/CoFeB-based magnetic tunneling junctions

K. Sekiguchi, T. Arakawa, Y. Yamauchi, K. Chida, M. Yamada, H. Takahashi, D. Chiba, K. Kobayashi, T. Ono

研究成果: Article査読

20 被引用数 (Scopus)

抄録

The electron transport through the CoFeB/MgO/CoFeB-based magnetic tunneling junction (MTJ) was studied by the shot noise measurement. The obtained Fano factor to characterize the shot noise is very close to unity, indicating the full shot noise, namely, the shot noise in the Schottky limit, both in the parallel and antiparallel magnetization configurations. This means the Poissonian process of the electron tunneling and the absence of the electron-electron correlation in the low bias regime. The shot noise measurements will be a good guideline to make up tunneling criteria for designing MTJ-based spin devices.

本文言語English
論文番号252504
ジャーナルApplied Physics Letters
96
25
DOI
出版ステータスPublished - 2010 6 21

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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