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

• 関口, 康爾

• Arakawa, T.

• Yamauchi, Y.

• Chida, K.

• Yamada, M.

• Takahashi, H.

• Chiba, D.

• Kobayashi, K.

• Ono, T.

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.

収録刊行物

• Applied Physics Letters

  Applied Physics Letters 96 (25), 2010-06-21

  American Institute of Physics

詳細情報

• CRID: 1050564285641702784
• NII論文ID: 120002462950
• NII書誌ID: AA00543431
• ISSN: 00036951
• HANDLE: 2433/126662
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
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  • CiNii Articles
  • KAKEN