A study of the soft magnetic thin films with super lattice structure for the high density recording head use

高密度记录头用超晶格结构软磁薄膜的研究

• 批准号: 60550222
• 负责人: TAKAHASHI Migaku
• 金额: $ 1.34万
• 依托单位: TOHOKU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-60550222/
• 关键词: magnetic inhomogeneities; magnetic skew; ripple; dynamic differential susceptibility; 実効透磁率; 軟磁性

To evaluate the magnetic inhomogeneities normally represented as magnetic skew and ripple, a systematic experimental investigation was carried out with using a dynamic differential susceptibility measurement proposed by H. Hoffmann for the multilayered <Co_79Zr_10Mo_9Ni_2> amorphous films. Influence of the local magnetic anisotropy on the effective permeability, <mu_eff> , of the films is widely discussed in connection with the magnetic skew and ripple. The magnitude of the <mu_eff> at the low frequency region less than 1MHz is strongly dependent on the degree of the long period fluctuation of the local magnetization (skew) and the magnitude of the anisotropy field. To realize an excellent soft magnetic properties in films at high frequency (10MHz), it is suggested that the decrement of the magnetic inhomogeneitis due to the short period fluctuation of the local magnetization should be important.

为了评价通常表现为磁偏斜和磁涟漪的磁不均匀性，采用H. Hoffmann的多层<Co_79Zr_10Mo_9Ni_2>非晶薄膜。局部磁各向异性对薄膜有效磁导率的影响<mu_eff>与磁偏斜和涟漪有关。在<mu_eff>小于1MHz的低频区，的大小强烈地依赖于局部磁化（偏斜）的长周期波动的程度和各向异性场的大小。为了在高频（10MHz）下获得优异的软磁性能，减小局部磁化强度的短周期波动引起的磁不均匀性是很重要的。

项目成果

M.Takahashi;H.Arai;T.Tanaka and T.Wakiyama: IEEE. MAG-22,5. 638-640 (1986)

M.Takahashi；H.Arai；T.Tanaka 和 T.Wakiyama：IEEE。

高橋研,島津武仁,島田寛,脇山徳雄: 日本応用磁気学会誌論文特集号. Vol.11No.2. (1987)

Ken Takahashi、Takehito Shimazu、Hiroshi Shimada、Norio Wakiyama：日本应用磁学杂志第 11 卷第 2 期特刊（1987 年）。

高橋研,新井英雄,松島秀直,脇山徳雄,佐藤富夫,渡辺伝次郎: 日本応用磁気学会誌論文特集号. Vol.11No.2. (1987)

Ken Takahashi、Hideo Arai、Hidenao Matsushima、Norio Wakiyama、Tomio Sato、Denjiro Watanabe：日本应用磁学杂志第 11 期第 2 期特刊。

M. Takahashi, S. Suwabe, T. Narita and T. Wakiyama: "Magnetic Properties of Fe-Si-Al Sputtered Films" J. Magn. Soc. Jpn.10. 307-310 (1986)

M. Takahashi、S. Suwabe、T. Narita 和 T. Wakiyama：“Fe-S​​i-Al 溅射薄膜的磁性” J. Magn。

高橋研,諏訪部繁和,成田隆之,脇山徳雄: 日本応用磁気学会誌論文特集号. 10. 307-310 (1986)

Ken Takahashi、Shigekazu Suwabe、Takayuki Narita、Norio Wakiyama：日本应用磁学杂志特刊。10. 307-310 (1986)