Pub Date : 1999-05-18DOI: 10.1109/INTMAG.1999.837588
B. Garrettson, S. Tan, A. Lakshmikumaran, F. Talke
The effect of slot edge defects on the performance of the head/tape interface is studied for single and double module heads. A number of typical edge defects was created artificially on a glass replica of an actual head, and three-wavelength interferometry was used to study spacing changes caused by these defects. The results show that head edge defects have a small influence on the flying behavior of tape with the effects being localized to the immediate defect area.
{"title":"Effect of slot edge defects on the head/tape spacing","authors":"B. Garrettson, S. Tan, A. Lakshmikumaran, F. Talke","doi":"10.1109/INTMAG.1999.837588","DOIUrl":"https://doi.org/10.1109/INTMAG.1999.837588","url":null,"abstract":"The effect of slot edge defects on the performance of the head/tape interface is studied for single and double module heads. A number of typical edge defects was created artificially on a glass replica of an actual head, and three-wavelength interferometry was used to study spacing changes caused by these defects. The results show that head edge defects have a small influence on the flying behavior of tape with the effects being localized to the immediate defect area.","PeriodicalId":425017,"journal":{"name":"IEEE International Magnetics Conference","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127523427","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}
Pub Date : 1999-05-18DOI: 10.1109/INTMAG.1999.837202
Hongsheng Cai
{"title":"A new frequency-domain technique for joint measurement of nlts and partial erasure","authors":"Hongsheng Cai","doi":"10.1109/INTMAG.1999.837202","DOIUrl":"https://doi.org/10.1109/INTMAG.1999.837202","url":null,"abstract":"","PeriodicalId":425017,"journal":{"name":"IEEE International Magnetics Conference","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124871841","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}
Pub Date : 1999-05-18DOI: 10.1109/INTMAG.1999.837449
N. Soda, M. Enokizono
{"title":"Direct loss analysis of induction motor by FEM with E&S model","authors":"N. Soda, M. Enokizono","doi":"10.1109/INTMAG.1999.837449","DOIUrl":"https://doi.org/10.1109/INTMAG.1999.837449","url":null,"abstract":"","PeriodicalId":425017,"journal":{"name":"IEEE International Magnetics Conference","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124888118","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}
Pub Date : 1999-05-18DOI: 10.1109/INTMAG.1999.837294
Y. Audo, N. Guan, K. Yashiro, S. Ohkawa
For in-plane magnetized YIG films, it is well known that either magnetostatic surface waves(MSSWs), backward volume waves(MSBVWs), or their hybrid modes propagate depending on the direction of the biasing magnetic field. For MSSW/MSBVW hybrid modes, as the angle 13 shown in Figure 1 increases , the frequency band of hiSSWs decreases in width, and the band disappears beyond a critical angle[l)(l]. In the present study, we have examined effects of a metal plane on the bandwidth and the critical angle. We have obtained new results that for the metallized YIG the band widens and no critical angle exists.
{"title":"Effects of a metal plane on MSSW/MSBVW modes in a yig film","authors":"Y. Audo, N. Guan, K. Yashiro, S. Ohkawa","doi":"10.1109/INTMAG.1999.837294","DOIUrl":"https://doi.org/10.1109/INTMAG.1999.837294","url":null,"abstract":"For in-plane magnetized YIG films, it is well known that either magnetostatic surface waves(MSSWs), backward volume waves(MSBVWs), or their hybrid modes propagate depending on the direction of the biasing magnetic field. For MSSW/MSBVW hybrid modes, as the angle 13 shown in Figure 1 increases , the frequency band of hiSSWs decreases in width, and the band disappears beyond a critical angle[l)(l]. In the present study, we have examined effects of a metal plane on the bandwidth and the critical angle. We have obtained new results that for the metallized YIG the band widens and no critical angle exists.","PeriodicalId":425017,"journal":{"name":"IEEE International Magnetics Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123246071","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}
Pub Date : 1999-05-18DOI: 10.1109/INTMAG.1999.837178
M. Tripathy, G. Srivastava
The available understanding on the Non-Resonant Microwave Absorption (NRMA) study of two dimensional layered and short E granular high temperature superconducting materials suggests that it is a technique which can brine out nlany macroscopic aspects like weak-links, pinning centres, flux motion and flux line latticc (F.L.L ) melting as well as microscopic aspects like fluctuations and 26 variation of superconducting phenomena.
{"title":"Anomalous magnetic behaviour in non-resonant microwave absorption study of bi - 2212 htsc","authors":"M. Tripathy, G. Srivastava","doi":"10.1109/INTMAG.1999.837178","DOIUrl":"https://doi.org/10.1109/INTMAG.1999.837178","url":null,"abstract":"The available understanding on the Non-Resonant Microwave Absorption (NRMA) study of two dimensional layered and short E granular high temperature superconducting materials suggests that it is a technique which can brine out nlany macroscopic aspects like weak-links, pinning centres, flux motion and flux line latticc (F.L.L ) melting as well as microscopic aspects like fluctuations and 26 variation of superconducting phenomena.","PeriodicalId":425017,"journal":{"name":"IEEE International Magnetics Conference","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123289372","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}
Pub Date : 1999-05-18DOI: 10.1109/INTMAG.1999.838023
S. Adachi, F. Sato, H. Matusuki, S. Kikuchi
Conladless power station (CLPS) is a contanless energy transmilling system by using elwtmmagneticaUy coupled coils as a transformer [1][2]. We propwe a selective excitation system of CLPS for moving robot. A new system detec&s the relative location betwecn primary and secondary coils. Rimary mil always are set under the floor. Only the pair of coils facing each ather is excited. Therefon, We are able to improve the transmitting efficiency of the system. Furthermon no heat generation of metal goods on the floor OCCUIS. Fig.1 Selective excitation system
{"title":"Consideration on contactless power station with selfctive excitation to moving robot","authors":"S. Adachi, F. Sato, H. Matusuki, S. Kikuchi","doi":"10.1109/INTMAG.1999.838023","DOIUrl":"https://doi.org/10.1109/INTMAG.1999.838023","url":null,"abstract":"Conladless power station (CLPS) is a contanless energy transmilling system by using elwtmmagneticaUy coupled coils as a transformer [1][2]. We propwe a selective excitation system of CLPS for moving robot. A new system detec&s the relative location betwecn primary and secondary coils. Rimary mil always are set under the floor. Only the pair of coils facing each ather is excited. Therefon, We are able to improve the transmitting efficiency of the system. Furthermon no heat generation of metal goods on the floor OCCUIS. Fig.1 Selective excitation system","PeriodicalId":425017,"journal":{"name":"IEEE International Magnetics Conference","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114931116","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}
Pub Date : 1999-05-18DOI: 10.1109/INTMAG.1999.837097
I. Okamoto, I. Kaitsu, H. Akimoto, K. Sato, E. Abarra, M. Shinohara
In the last 8 years, the areal density of rigid disk has been improving at annual growth rates of 60% by the application of (G)MR heads. If this growth rate continues, 40 Gh/in' drives will he on the market around year 2003. Thus we have to develop ways to realize such areal density. One specification for 40 Gblin' recording is listed in Table 1. The highest recording density on the medium is reduced from MH) kFCI to 450 kFCI by applying (1,7) MMEEPR4 without a loss in performance [I]. Dm value is estimated at 415 kFCI by analytical calculation. Table 1 One specification for 40 Gb/inz recording
{"title":"Co Alloy thin film media and granular media for 40 Gb/in/sup 2/ longitudinal recording (projection)","authors":"I. Okamoto, I. Kaitsu, H. Akimoto, K. Sato, E. Abarra, M. Shinohara","doi":"10.1109/INTMAG.1999.837097","DOIUrl":"https://doi.org/10.1109/INTMAG.1999.837097","url":null,"abstract":"In the last 8 years, the areal density of rigid disk has been improving at annual growth rates of 60% by the application of (G)MR heads. If this growth rate continues, 40 Gh/in' drives will he on the market around year 2003. Thus we have to develop ways to realize such areal density. One specification for 40 Gblin' recording is listed in Table 1. The highest recording density on the medium is reduced from MH) kFCI to 450 kFCI by applying (1,7) MMEEPR4 without a loss in performance [I]. Dm value is estimated at 415 kFCI by analytical calculation. Table 1 One specification for 40 Gb/inz recording","PeriodicalId":425017,"journal":{"name":"IEEE International Magnetics Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116058046","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}
Pub Date : 1999-05-18DOI: 10.1109/INTMAG.1999.837353
K. Noma, K. Aoshima, J. Kane, H. Kanai
Spin-nlve heads with a narrower read-gap and thinner spin-valve film are necessary for achieving higher m p & c recording densities in harddisk drives. PdRMn with an ordered Cu-Au-I type srmcNre has B high blocking tempaature and high corrosion resistiviiy which are very attractive for spin-valve hcads[l]. However. a PdPtMn layer thidmess, twm p k r than 200A is essentially required for attaining an exchange pinning field rl, of 6lM Oe. Spiuvalves with synlhetic ferrimagnet hilayers as thc pi& layer have a higher H, and small readback amplitude aseven at very low clement height in ~nparim with a conventional spin-valve[Zl. In this p a p . we repat on lhe MR response of CoFeBKWCoFeB syutaic ferrimagnn biased spin-valve (ferri-SV) films with PdPtMn a m i f m p e r and present the success^ redunion oft-. to 8oA.
具有更窄读隙和更薄自旋阀膜的自旋阀头对于在硬盘驱动器中实现更高的mp&c记录密度是必要的。具有有序Cu-Au-I型srmcNre的PdRMn具有B高阻塞温度和高耐腐蚀性，这对自旋阀头非常有吸引力[1]。然而。要获得6lM Oe的交换钉钉场rl, PdPtMn层厚度必须大于200A。以合成铁磁体层为pi&层的自旋阀，即使在极低的元件高度下，也具有较高的H值和较小的回读振幅[z1]。在这个p a p中。本文研究了CoFeBKWCoFeB合成铁蛋白偏置自旋阀(ferri-SV)膜与PdPtMn和m的MR响应，并成功还原了-。到8 oa。
{"title":"PdPtMn/CoFeB synthetic ferrimagnet biased spin-valves","authors":"K. Noma, K. Aoshima, J. Kane, H. Kanai","doi":"10.1109/INTMAG.1999.837353","DOIUrl":"https://doi.org/10.1109/INTMAG.1999.837353","url":null,"abstract":"Spin-nlve heads with a narrower read-gap and thinner spin-valve film are necessary for achieving higher m p & c recording densities in harddisk drives. PdRMn with an ordered Cu-Au-I type srmcNre has B high blocking tempaature and high corrosion resistiviiy which are very attractive for spin-valve hcads[l]. However. a PdPtMn layer thidmess, twm p k r than 200A is essentially required for attaining an exchange pinning field rl, of 6lM Oe. Spiuvalves with synlhetic ferrimagnet hilayers as thc pi& layer have a higher H, and small readback amplitude aseven at very low clement height in ~nparim with a conventional spin-valve[Zl. In this p a p . we repat on lhe MR response of CoFeBKWCoFeB syutaic ferrimagnn biased spin-valve (ferri-SV) films with PdPtMn a m i f m p e r and present the success^ redunion oft-. to 8oA.","PeriodicalId":425017,"journal":{"name":"IEEE International Magnetics Conference","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116547042","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}
Pub Date : 1999-05-18DOI: 10.1109/INTMAG.1999.837959
X.Y. Yu, I. Sugimoto, K. Shōno
{"title":"Double-mask MSR media designed for blue laser recording","authors":"X.Y. Yu, I. Sugimoto, K. Shōno","doi":"10.1109/INTMAG.1999.837959","DOIUrl":"https://doi.org/10.1109/INTMAG.1999.837959","url":null,"abstract":"","PeriodicalId":425017,"journal":{"name":"IEEE International Magnetics Conference","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122668577","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}
Pub Date : 1999-05-18DOI: 10.1109/INTMAG.1999.837941
T. Yamamoto, A. Shiuchi, K. Suzuki, A. Saito
The magnetostriction has major responsible for the noise of transformer core. Therefore it is very important to investigate the mechanism of appearance and the properties for magnetostricton. Magnetostriction of the Si-Fe sheets is very small as their magnetization mainly proceeds with the displacement of the 180" domain. However, large magnetostriction occurs on the sample, when the direction of magnetization inclined from [OOl] direction of rolling direction 14. Therefore the research ofmagnetostriction for the Si-Fe sheets, whose direction of magnetization is not parallel to rolling direction, has become more important. We investigated, in this paper, the propehes of magnetostriction change and the domain structure change of declined sample from rolling direction. We also investigated the effect of shess on the magnetostriction change t o make clear the mechanism of magnetostriction change.
{"title":"Magnetostruction change of grain oriented Si-Fe sheet sample declined from rolling direction under field and stress","authors":"T. Yamamoto, A. Shiuchi, K. Suzuki, A. Saito","doi":"10.1109/INTMAG.1999.837941","DOIUrl":"https://doi.org/10.1109/INTMAG.1999.837941","url":null,"abstract":"The magnetostriction has major responsible for the noise of transformer core. Therefore it is very important to investigate the mechanism of appearance and the properties for magnetostricton. Magnetostriction of the Si-Fe sheets is very small as their magnetization mainly proceeds with the displacement of the 180\" domain. However, large magnetostriction occurs on the sample, when the direction of magnetization inclined from [OOl] direction of rolling direction 14. Therefore the research ofmagnetostriction for the Si-Fe sheets, whose direction of magnetization is not parallel to rolling direction, has become more important. We investigated, in this paper, the propehes of magnetostriction change and the domain structure change of declined sample from rolling direction. We also investigated the effect of shess on the magnetostriction change t o make clear the mechanism of magnetostriction change.","PeriodicalId":425017,"journal":{"name":"IEEE International Magnetics Conference","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114476737","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}
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