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.

为了开发一种多层材料，磁矩在原子阶厚度中陡峭地改变了它们的方向，该材料由基于CO的铁磁层和RU间隙层组成，呈平面（CPP）磁磁性薄膜薄膜设备，并用UHV输入方法及其运输属性进行了研究。 MN-IR/铁磁双层的界面无补偿旋转也通过更改铁磁物质进行了研究。结果，发现铁磁铁的界面和晶体结构的交换相互作用对于大型交换各向异性很重要。

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