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INTERMAG 2006 - IEEE International Magnetics Conference最新文献

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A Practical Measurement Method for Back EMF Coefficients of Switched Reluctance Motors 开关磁阻电机反电动势系数的实用测量方法
INTERMAG 2006 - IEEE International Magnetics Conference Pub Date : 2006-05-08 DOI: 10.1109/INTMAG.2006.375441
W. Gan, K. Chan, D. Chan, G. Widdowson
{"title":"A Practical Measurement Method for Back EMF Coefficients of Switched Reluctance Motors","authors":"W. Gan, K. Chan, D. Chan, G. Widdowson","doi":"10.1109/INTMAG.2006.375441","DOIUrl":"https://doi.org/10.1109/INTMAG.2006.375441","url":null,"abstract":"In this paper, a novel double excitation measurement method is proposed and the BEMF coefficient parameter can be obtained directly without performing any differentiation and integration operation.","PeriodicalId":262607,"journal":{"name":"INTERMAG 2006 - IEEE International Magnetics Conference","volume":"179 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115196780","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
Effects of the Addition of Permalloy Powder on the High-Frequency Magnetic Properties of Fe-based Amorphous Powder Cores 坡莫合金粉末的加入对铁基非晶粉末芯高频磁性能的影响
INTERMAG 2006 - IEEE International Magnetics Conference Pub Date : 2006-05-08 DOI: 10.1109/INTMAG.2006.374878
Y. Kim, K. Kim
{"title":"Effects of the Addition of Permalloy Powder on the High-Frequency Magnetic Properties of Fe-based Amorphous Powder Cores","authors":"Y. Kim, K. Kim","doi":"10.1109/INTMAG.2006.374878","DOIUrl":"https://doi.org/10.1109/INTMAG.2006.374878","url":null,"abstract":"The fabrication of Fe-based soft magnetic amorphous cores by powder metallurgical process using various consolidation techniques is discussed. In this study, FeSiB amorphous powder cores with an addition of permalloy powder were prepared by cold pressing. The effects of the permalloy powder on the high-frequency magnetic properties such as permeability, coercivity and eddy current loss were reported. According to the cross-sectional SEM micrograph of the compacted core, the permalloy powders were plastically deformed by cold pressing and this can be helpful for compaction of amorphous powder cores.","PeriodicalId":262607,"journal":{"name":"INTERMAG 2006 - IEEE International Magnetics Conference","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115739845","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: 2
The Future Prospect of Semiconductor Nonvolatile Memory 半导体非易失性存储器的未来展望
INTERMAG 2006 - IEEE International Magnetics Conference Pub Date : 2006-05-08 DOI: 10.1109/INTMAG.2006.375602
K. Kim
{"title":"The Future Prospect of Semiconductor Nonvolatile Memory","authors":"K. Kim","doi":"10.1109/INTMAG.2006.375602","DOIUrl":"https://doi.org/10.1109/INTMAG.2006.375602","url":null,"abstract":"As mobile appliances are prevailing in our daily lives, the nonvolatile memory suitable for mobile applications such as MP3, DSC, PDA and so on becomes indispensable elements and it is anticipated that the non-volatile memory usage will be much increased in future due to such diversified applications and some possibilities of supplanting incumbent applications like HDD. Nonvolatile memory technology, especially NAND flash technology is going through the fastest evolution amongst the silicon technologies. It is highly expected that the same trend of evolution or more the aggressive will be continued in the future. This paper presents the different types of existing and emerging nonvolatile memories such as NAND technology, NOR falsh, PRAM, FRAM, MRAM or spintronics, RRAM and others, and the challenges faced by each of this technologies.","PeriodicalId":262607,"journal":{"name":"INTERMAG 2006 - IEEE International Magnetics Conference","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115847037","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: 7
Local and Global Magnetic properties of Zn1-xCoxO, ZnCo2O4 and Mn-doped GaAs thin films Zn1-xCoxO, ZnCo2O4和mn掺杂GaAs薄膜的局域和全局磁性能
INTERMAG 2006 - IEEE International Magnetics Conference Pub Date : 2006-05-08 DOI: 10.1109/INTMAG.2006.375641
W. Iwamoto, P. Pagliuso, R. Urbano, C. Rettori, K. Samanta, P. Bhattacharya, R. Katiyar, J. D. da Silva, A. Pereira, G.A. Medeiros, S. Oseroff
{"title":"Local and Global Magnetic properties of Zn1-xCoxO, ZnCo2O4 and Mn-doped GaAs thin films","authors":"W. Iwamoto, P. Pagliuso, R. Urbano, C. Rettori, K. Samanta, P. Bhattacharya, R. Katiyar, J. D. da Silva, A. Pereira, G.A. Medeiros, S. Oseroff","doi":"10.1109/INTMAG.2006.375641","DOIUrl":"https://doi.org/10.1109/INTMAG.2006.375641","url":null,"abstract":"Magnetic susceptibility and electron spin resonance (ESR) in different classes of ferromagnetic thin films were reported. Amorphous and crystalline thin films of Mn-doped GaAs and GaN were studied for different Mn concentrations (0.5 -10%) and for hydrogenated films with the same Mn concentrations. The films have been deposited using pulsed laser deposition on c-axis (0001) oriented Al2O3 substrates.","PeriodicalId":262607,"journal":{"name":"INTERMAG 2006 - IEEE International Magnetics Conference","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124130511","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
Longitudinal and lateral finite size effects in NA-FMR measurements NA-FMR测量中的纵向和横向有限尺寸效应
INTERMAG 2006 - IEEE International Magnetics Conference Pub Date : 2006-05-08 DOI: 10.1109/INTMAG.2006.376153
G. Counil, J. Kim, T. Devolder, P. Crozat, C. Chappert, S. Zoll, R. Fournel
{"title":"Longitudinal and lateral finite size effects in NA-FMR measurements","authors":"G. Counil, J. Kim, T. Devolder, P. Crozat, C. Chappert, S. Zoll, R. Fournel","doi":"10.1109/INTMAG.2006.376153","DOIUrl":"https://doi.org/10.1109/INTMAG.2006.376153","url":null,"abstract":"In the linear regime, a measure of the magnetic damping can be obtained from the linewidth of the ferromagnetic resonance peak. One means of distinguishing between different classes of damping mechanisms is to examine the frequency dependence of the linewidth. With network analyzer ferromagnetic resonance (NA-FMR), the magnetic susceptibility can be measured in the 0-26 GHz range, from which one can obtain valuable information about how energy dissipation evolves at higher frequencies. The NA-FMR does, however, present a number of caveats. Under certain resonance conditions, for example, it is possible that non-uniform spin-wave modes are excited, due to a driving magnetic field that will be necessarily non-uniform when viewed by a sample whose dimensions exceed those of the central conductor of the coplanar wave guide. This results in the excitation of spin waves, which cause broadening of the resonance peak and then an apparent enhancement of the measured linewidth. We analyze quantitatively the contribution of this experimental source of error and show how to extract the value of the \"intrinsic\" damping.","PeriodicalId":262607,"journal":{"name":"INTERMAG 2006 - IEEE International Magnetics Conference","volume":"364 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124573384","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
Perpendicular Thin-Film Recording Media ¢?? Materials and Design Challenges 垂直薄膜记录介质ⅱ??材料与设计挑战
INTERMAG 2006 - IEEE International Magnetics Conference Pub Date : 2006-05-08 DOI: 10.1109/INTMAG.2006.376440
K.E. Johnson, G. Choe, B. Acharya, E. Abarra
{"title":"Perpendicular Thin-Film Recording Media ¢?? Materials and Design Challenges","authors":"K.E. Johnson, G. Choe, B. Acharya, E. Abarra","doi":"10.1109/INTMAG.2006.376440","DOIUrl":"https://doi.org/10.1109/INTMAG.2006.376440","url":null,"abstract":"Perpendicular magnetic recording (PMR) has been recognized for many years as having the potential to extend recording densities beyond the capabilities of longitudinal recording. This paper discusses the challenges in designing perpendicular thin-film recording media materials.","PeriodicalId":262607,"journal":{"name":"INTERMAG 2006 - IEEE International Magnetics Conference","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114871030","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: 3
Micromagnetic analysis of foldover, quasiperiodicity, and parametric instabilities in ultra-thin films 超薄膜中折叠、准周期性和参数不稳定性的微磁分析
INTERMAG 2006 - IEEE International Magnetics Conference Pub Date : 2006-05-08 DOI: 10.1109/INTMAG.2006.375531
M. d’Aquino, C. Serpico, G. Bertotti, I. Mayergoyz
{"title":"Micromagnetic analysis of foldover, quasiperiodicity, and parametric instabilities in ultra-thin films","authors":"M. d’Aquino, C. Serpico, G. Bertotti, I. Mayergoyz","doi":"10.1109/INTMAG.2006.375531","DOIUrl":"https://doi.org/10.1109/INTMAG.2006.375531","url":null,"abstract":"This paper investigates, by using numerical and analytical techniques, to what extent the instabilities which lead to nonuniform magnetization dynamics, are relevant to ultra-thin films of sub-micron transversal dimensions. It is studied in detail what are the magnetic body dimensions and the excitation conditions which lead to an appreciable deviation of the magnetization dynamics from the uniform mode solution of the problem. and geometrical characteristics of the magnetic system. Also, spin-waves instability is analyzed by means of micromagnetic simulations and the results are compared with the ory.","PeriodicalId":262607,"journal":{"name":"INTERMAG 2006 - IEEE International Magnetics Conference","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114733133","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
Magnetic Reversal Mechanisms in Spin Valves with Pico-Scale Antiferromagnetic Layers 具有微尺度反铁磁层的自旋阀的磁反转机制
INTERMAG 2006 - IEEE International Magnetics Conference Pub Date : 2006-05-08 DOI: 10.1109/INTMAG.2006.376343
S. Moyerman, J. Borchers, W. Gannett, M. Doucet, P. Sparks, J. Eckert
{"title":"Magnetic Reversal Mechanisms in Spin Valves with Pico-Scale Antiferromagnetic Layers","authors":"S. Moyerman, J. Borchers, W. Gannett, M. Doucet, P. Sparks, J. Eckert","doi":"10.1109/INTMAG.2006.376343","DOIUrl":"https://doi.org/10.1109/INTMAG.2006.376343","url":null,"abstract":"Giant magnetoresistance (GMR) studies at 5K have verified the presence of exchange bias in spin valves with AFM layers as thin at 0.4 nm. To probe the stability of such systems at these threshold values, a comparable spin valve with AFM thickness 0.4 nm is studied using polarized neutron reflectometry (PNR) and GMR techniques.","PeriodicalId":262607,"journal":{"name":"INTERMAG 2006 - IEEE International Magnetics Conference","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115041417","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
CPW Cascaded Magnetostatic Wave Band Stop Resonators CPW级联静磁带阻谐振器
INTERMAG 2006 - IEEE International Magnetics Conference Pub Date : 2006-05-08 DOI: 10.1109/INTMAG.2006.376409
A. Cismaru, R. Marcelli
{"title":"CPW Cascaded Magnetostatic Wave Band Stop Resonators","authors":"A. Cismaru, R. Marcelli","doi":"10.1109/INTMAG.2006.376409","DOIUrl":"https://doi.org/10.1109/INTMAG.2006.376409","url":null,"abstract":"A microwave tunable band-stop configuration based on a combination of two cascaded magneto-static wave (MSW) resonators, working at frequencies higher than 10 GHz has been analysed. The structure has been obtained by coupling yttrium iron garnet (YIG) film straight edge resonators (SER) excited by magnetostatic waves (MSW) with a CPW on a silicon substrate. The utilisation of the coplanar configuration instead of microstrip ones was chosen because the CPW transmission system permits easy shunt connection of the external elements. As a conclusion, the better confinement of the RF field in the region where the SER is placed renders the CPW solution better than the classical microstrip one in terms of electrical coupling between resonator and transducer. The presence of two resonators, almost identical between them but not perfectly equal, enhances the mode better coupled, i.e. the main one, vs. the high order modes, having lower amplitude and more critical to be excited.","PeriodicalId":262607,"journal":{"name":"INTERMAG 2006 - IEEE International Magnetics Conference","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117155751","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: 8
Lattice expansion by oxygen addition to control crystallographic orientations in chemically ordered L10 FePt films 在化学有序的L10 FePt薄膜中加入氧控制晶体取向的晶格膨胀
INTERMAG 2006 - IEEE International Magnetics Conference Pub Date : 2006-05-08 DOI: 10.1109/INTMAG.2006.376201
H. Lee, J. Kim
{"title":"Lattice expansion by oxygen addition to control crystallographic orientations in chemically ordered L10 FePt films","authors":"H. Lee, J. Kim","doi":"10.1109/INTMAG.2006.376201","DOIUrl":"https://doi.org/10.1109/INTMAG.2006.376201","url":null,"abstract":"L10 FePt thin films attract attention for extremely high densities beyond 1 Tera bit/in2 due to their large magnetocrystalline anisotropy (7-10times107 ergs/cc). However, chemically ordered [001] FePt films are not easily tailored on conventional substrates. Hetero-epitaxial underlayers, post-annealed FePt multilayer films, and low kinetic deposition have been suggested to develop the [001] c-axis orientation for perpendicular media applications. In this work, oxygen was introduced to reduce the lattice mismatch with underlayer stack, aiming the [001] FePt films on commercial polycrystalline substrates.","PeriodicalId":262607,"journal":{"name":"INTERMAG 2006 - IEEE International Magnetics Conference","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117172231","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
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