IEEE Translation Journal on Magnetics in Japan最新文献_第5页

An Investigation of Exchange-Coupled Films by 0-K Monte Carlo Simulation Using the Classical Heisenberg Model 交换耦合膜的经典Heisenberg模型0-K蒙特卡罗模拟研究

IEEE Translation Journal on Magnetics in Japan Pub Date : 1994-11-01 DOI: 10.1109/TJMJ.1994.4565988

Y. Sakurai;H. Kitatani;T. Ishiguro;Y. Ichinose

引用次数: 2

Opinion 意见

IEEE Translation Journal on Magnetics in Japan Pub Date : 1994-11-01 DOI: 10.1109/TJMJ.1994.4565949

引用次数: 0

Correlation between Noise-after-Write and Magnetic Domain in Thin-Film Heads by Electron Microscopy 用电子显微镜研究薄膜磁头写入后噪声与磁畴的相关性

IEEE Translation Journal on Magnetics in Japan Pub Date : 1994-11-01 DOI: 10.1109/TJMJ.1994.4565982

K. Kobayashi

{"title":"Correlation between Noise-after-Write and Magnetic Domain in Thin-Film Heads by Electron Microscopy","authors":"K. Kobayashi","doi":"10.1109/TJMJ.1994.4565982","DOIUrl":"https://doi.org/10.1109/TJMJ.1994.4565982","url":null,"abstract":"Noise-after-write has been reported in thin film heads, although its source or sources have not yet been identified. To discover these noise sources, I observed conversions of magnetic domain structure after writing with an electron microscope. The magnetic domain observations involved lock-in image processing for back-scattered electron contrast (type II), using a JEOL 2000FX II 200 kV electron microscope. Thin-film heads were excited by a 10 mA\u0000p-p\u0000, 100 kHz driving current. The magnetic domains in the upper yokes of the heads were observed after 60 mA\u0000p-p\u0000 write operations. The head with the highest noise probability, at 5.2×10\u0000-2\u0000, exhibited walls radiating outward from the back-gap closure, which were due to stress. The magnetic domain structure was severely deformed after writing. The head with the lowest noise probability, at 1.6×10\u00004\u0000, exhibited a normal closure domain configuration, with very little conversion. These results indicate that noise-after-write is generated mainly near the backgap closure.","PeriodicalId":100647,"journal":{"name":"IEEE Translation Journal on Magnetics in Japan","volume":"9 6","pages":"210-217"},"PeriodicalIF":0.0,"publicationDate":"1994-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/TJMJ.1994.4565982","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67873630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Soft Magnetic Properties of Highly Resistive Co-Al-N Alloy Films 高电阻Co-Al-N合金薄膜的软磁性能

IEEE Translation Journal on Magnetics in Japan Pub Date : 1994-11-01 DOI: 10.1109/TJMJ.1994.4565971

S. Ohnuma;S. Furukawa;F. Matsumoto;H. Fujimori;K. Takahiro;S. Nagata;S. Yamaguchi;T. Masumoto

{"title":"Soft Magnetic Properties of Highly Resistive Co-Al-N Alloy Films","authors":"S. Ohnuma;S. Furukawa;F. Matsumoto;H. Fujimori;K. Takahiro;S. Nagata;S. Yamaguchi;T. Masumoto","doi":"10.1109/TJMJ.1994.4565971","DOIUrl":"https://doi.org/10.1109/TJMJ.1994.4565971","url":null,"abstract":"The effects of the Al and N content on the structure and properties of Co\u0000.95\u0000Fe\u0000.05\u0000-Al-N films prepared by rf reactive magnetron sputtering using (N\u00002\u0000+Ar) gas were studied. TEM observations revealed that nitrided films are composed of heterogeneous phases with a very fine network structure. It was found that the properties of films are determined mainly by the combination of the Al and N concentrations. The coercivity of films containing more than 10 at% Al decreases with increasing N content, even when the film thickness is more than 2 μm. A steep increase in the electrical resistivity and a slight decrease in the magnetization of films containing more than 15 at% Al were observed during the initial increase in the N concentration, and both electrical resistivity and magnetization decreased rapidly when the N concentration was the same as that of Al. These anomalies are attributed to intergranular materials, indicating the presence in these films of a phase rich in Al and N.","PeriodicalId":100647,"journal":{"name":"IEEE Translation Journal on Magnetics in Japan","volume":"9 6","pages":"138-145"},"PeriodicalIF":0.0,"publicationDate":"1994-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/TJMJ.1994.4565971","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67872979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

Microstructure and Crystallization Behavior of Fe-M-O (M=Hf, Zr) Films with High Resistivity 高电阻率Fe-M-O（M=Hf，Zr）薄膜的微观结构和结晶行为

IEEE Translation Journal on Magnetics in Japan Pub Date : 1994-11-01 DOI: 10.1109/TJMJ.1994.4565993

A. Makino;Y. Hayakawa

引用次数: 3

Interlayer Coupling and Magnetization Process in Co/Pt/Gd/Pt Multilayers Co/Pt/Gd/Pt多层膜的层间耦合和磁化过程

IEEE Translation Journal on Magnetics in Japan Pub Date : 1994-11-01 DOI: 10.1109/TJMJ.1994.4565975

K. Takanashi;M. Ohba;H. Kurokawa;H. Fujimori

引用次数: 1

Magnetic Properties of Rapidly Quenched (Gd-M)80Si12B8 Amorphous Alloys 快速淬火（Gd-M）80Si12B8非晶合金的磁性能

IEEE Translation Journal on Magnetics in Japan Pub Date : 1994-11-01 DOI: 10.1109/TJMJ.1994.4565978

N. Kurita;Y. Ando;S. Ishio;T. Miyazaki

引用次数: 0

Analysis of Magnetic Shielding Effects for Thin-Film Inductors 薄膜电感的磁屏蔽效应分析

IEEE Translation Journal on Magnetics in Japan Pub Date : 1994-11-01 DOI: 10.1109/TJMJ.1994.4565960

M. Yamaguchi;S. Yabukami;K.I. Arai

引用次数: 1

Domain Wall Motion and Eddy Current Losses in Very Thin 3% Si-Fe Core 3%Si-Fe极薄磁芯畴壁运动与涡流损耗

IEEE Translation Journal on Magnetics in Japan Pub Date : 1994-11-01 DOI: 10.1109/TJMJ.1994.4565990

Y.H. Kim;M. Yamaguchi;K.I. Arai

{"title":"Domain Wall Motion and Eddy Current Losses in Very Thin 3% Si-Fe Core","authors":"Y.H. Kim;M. Yamaguchi;K.I. Arai","doi":"10.1109/TJMJ.1994.4565990","DOIUrl":"https://doi.org/10.1109/TJMJ.1994.4565990","url":null,"abstract":"The number of domain walls and the domain wall velocity of very thin (110) [001] 3% Si-Fe strip-wound cores were observed by SEM at excitation frequencies up to 5 kHz. Eddy current losses were calculated on the basis of the dynamic domain behavior using two models. a modified Pry and Bean model, and a model which considers the difference between each domain wall velocity. Both models assume sinusoidal domain wall motion. The measured eddy current losses were compared with calculated values. However, the measured losses disagreed with estimations in the frequency range from 50 to 500 Hz. The domain wall motion in each layer was estimated from the flux voltage waveform of a movable pickup coil inserted into a layer of a 3% Si-Fe strip. We found that the voltage waveform was not sinusoidal even if the secondary voltage waveform of the core was sinusoidal, and that the magnitude of the voltage in each layer was not uniform. The results mean that the domain wall motion is not uniform even in the 50 to 500 Hz range. The nonuniformity of the domain wall motion makes the eddy current losses larger than the results estimated on the basis of the two models.","PeriodicalId":100647,"journal":{"name":"IEEE Translation Journal on Magnetics in Japan","volume":"9 6","pages":"261-266"},"PeriodicalIF":0.0,"publicationDate":"1994-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/TJMJ.1994.4565990","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67872878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Giant Magnetoresistance Effect in Grain-Type Alloy Thin Films: II -Annealing and Double-Layering- 晶粒型合金薄膜中的巨磁电阻效应：Ⅱ-退火和双层-

IEEE Translation Journal on Magnetics in Japan Pub Date : 1994-11-01 DOI: 10.1109/TJMJ.1994.4565973

A. Maeda;S. Oikawa;M. Kume;Y. Shimizu;M. Doi

引用次数: 0