NiFe/Co/Al2O3/Co/NiFe/FeMn接合のトンネル磁気抵抗効果

• 熊谷 静似

  東北大学工学研究科

• 手束 展規

  東北大学工学研究科

• 宮崎 照宣

  東北大学工学研究科

書誌事項

タイトル別名

• Ferromagnetic Tunneling Magnetoresistive Effect for NiFe/Co/Al2O3/Co/NiFe/FeMn Junctions
• NiFe Co Al2O3 Co NiFe FeMn セツゴウ ノ トンネル

抄録

Spin-valve-type ferromagnetic tunneling junctions using contact metal masks were fabricated, and the annealing effect and temperature dependence of the tunneling magnetoresistance (TMR) ratio and saturated resistance (R_s) were investigated. As-prepared NiFe/Co/Al₂O₃/Co/NiFe/FeMn junctions showed a spin-valve-like MR curve at room temperature. The effect of field annealing was investigated for two reasons: to increase the TMR ratio and: to create an orthogonal magnetic orientation in each of the two magnetic layers. The temperature dependence of the TMR ratio and R_s is affected by the annealing. For the annealed junction, the TMR ratio decreases slightly with increasing temperature and decreases rapidly around 418 K, because of the disappearance of the exchange bias in the FeMn layer.

収録刊行物

• 日本応用磁気学会誌

  日本応用磁気学会誌 22 (4_2), 561-564, 1998

  公益社団法人 日本磁気学会

キーワード

• tunnel junction
• ferromagnetic tunneling magnetoresistive effect
• spin-valve
• tunneling magnetoresistance ratio
• magnetic head

詳細情報

• CRID: 1390001205093873792
• NII論文ID: 110002811483
• NII書誌ID: AN0031390X
• DOI: 10.3379/jmsjmag.22.561
• ISSN: 18804004
• ISSN: 02850192
• ISSN: http://id.crossref.org/issn/02850192
• NDL書誌ID: 4458093
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4458093
• Web Site: http://dl.ndl.go.jp/info:ndljp/pid/10463901
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