Fabrication of full metal CPP-spin valves with atomic order spacer layer and their magnetoresistance effect

原子级间隔层全金属CPP自旋阀的制备及其磁阻效应

• 批准号: 23651144
• 负责人: TSUNODA Masakiyo
• 金额: $ 2.41万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23651144/
• 关键词: 磁性; 磁気抵抗効果; スピントロニクス; 交換磁気異方性; スピンバルブ

In order to develop a multilayer material in which magnetic moments steeply change their direction within atomic-order thickness, current-perpendicular to plane (CPP) magnetoresistance thin-film devices, consisted of Co based ferromagnetic layer and Ru spacer layer, were fabricated with UHV-sputtering method, and their transport properties were investigated. The interfacial uncompensated spins of Mn-Ir/ ferromagnetic bilayerswere also investigated with changing the ferromagnetic material. As a result, the exchange interaction at the interface and crystal structure of the ferromagnet were found to be important for large exchange anisotropy.

为了研制磁矩方向在原子级厚度内突变的多层膜材料，采用超高压溅射法制备了由Co基铁磁层和Ru间隔层组成的电流垂直于平面（CPP）磁电阻薄膜器件，并研究了其输运特性.通过改变铁磁材料，研究了Mn-Ir/铁磁双层膜的界面非补偿自旋。结果表明，铁磁体的界面交换相互作用和晶体结构对大交换各向异性是重要的。

项目成果

Coupling strength with off-axial external field in magnetic tunnel junction cells

磁隧道结电池中与离轴外场的耦合强度

• DOI: 10.1063/1.3560047
• 发表时间: 2011
• 期刊: Journal of Applied Physics
• 影响因子: 3.2
• 作者: C. T. Chao;C. Y. Kuo;C. C. Chen;L. Horng;Y. J. Chang;T. Wu;S. Isogmi;M. Tsunoda;M. Takahashi;and J. C. Wu
• 通讯作者: and J. C. Wu

Soft X-ray Magnetic Circular Dichroism of a CoFe/MnIr Exchange Bias Film under Pulsed High Magnetic Field

脉冲强磁场下 CoFe/MnIr 交换偏置薄膜的软 X 射线磁圆二色性

• DOI: 10.1143/apex.4.066602
• 发表时间: 2011
• 期刊: Applied Physics Express
• 影响因子: 2.3
• 作者: Tetsuya Nakamura;Yasuo Narumi;Toko Hirono;Misaki Hayashi;Kenji Kodama;Masakiyo Tsunoda;Shinji Isogami;Hirokazu Takahashi;Toyohiko Kinoshita;Koichi Kindo;Hiroyuki Nojiri
• 通讯作者: Hiroyuki Nojiri

Orientational Dependence of Perpendicular Exchange Anisotropy inMn-Ir/Co-Fe/Pd/[Co/Pd]4 Multilayers

Mn-Ir/Co-Fe/Pd/[Co/Pd]4 多层膜中垂直交换各向异性的取向依赖性

• 发表时间: 2012
• 作者: Daisuke Miyoshi;Hidenobu Yaku;三好大輔;H. Takahashi and M. Tsunoda
• 通讯作者: H. Takahashi and M. Tsunoda

Current-induced switching of exchange bias in nano-scaled magnetic tunnel junctions with a synthetic antiferromagnetic pinned layer

• DOI: 10.1063/1.3673811
• 发表时间: 2012-02
• 期刊: Journal of Applied Physics
• 影响因子: 3.2
• 作者: C. Chao;C. Kuo;L. Horng;M. Tsunoda;M. Takahashi;J. Wu

Effect of Thermal Fluctuations of Magnetization on Perpendicular Exchange Anisotropy in Mn-Ir / [Co / Pt]<i>_n</i> Multilayers

磁化热涨落对 Mn-Ir / [Co / Pt]<i>_n</i> 多层膜垂直交换各向异性的影响

• DOI: 10.3379/msjmag.1207r001
• 发表时间: 2012
• 期刊: Journal of the Magnetics Society of Japan
• 作者: 高橋宏和,角田匡清,高橋研