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題名 Compensation between magnetoresistance and switching current in Co/Cu/Co spin valve pillar structure
作者 李尚凡
Cheng,K. W. ; Yu,C. ; Lin,L. K. ; Yao,Y. D. ; Liou,Y. ; Huang,J. H. ; Lee,S. F.
貢獻者 應物所
日期 2010
上傳時間 9-Oct-2014 15:49:35 (UTC+8)
摘要 We examine the effects of modifying the Co hard layer thickness of Co/Cu/Co spin valve submicron pillars with current flowing perpendicular to the plane. The magnetoresistance(MR) ratios and switching currents show complementary behaviors. As the Co hard layer thickness is increased, the MR ratio shows an initial increase with a peak around 21 nm. The critical switching current shows a dip around the same thickness, which is close to the spin diffusion length. The product of the MR ratio and critical current density is about a constant independent of the Co hard layer thickness. Thus, we provide an approach to achieving maximum efficiency (MR ratio) and minimum consumption (critical current) for a practical device.
關聯 Appl. Phys. Lett,.96, 093110
資料類型 article
dc.contributor 應物所en_US
dc.creator (作者) 李尚凡zh_TW
dc.creator (作者) Cheng,K. W. ; Yu,C. ; Lin,L. K. ; Yao,Y. D. ; Liou,Y. ; Huang,J. H. ; Lee,S. F.en_US
dc.date (日期) 2010en_US
dc.date.accessioned 9-Oct-2014 15:49:35 (UTC+8)-
dc.date.available 9-Oct-2014 15:49:35 (UTC+8)-
dc.date.issued (上傳時間) 9-Oct-2014 15:49:35 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/70499-
dc.description.abstract (摘要) We examine the effects of modifying the Co hard layer thickness of Co/Cu/Co spin valve submicron pillars with current flowing perpendicular to the plane. The magnetoresistance(MR) ratios and switching currents show complementary behaviors. As the Co hard layer thickness is increased, the MR ratio shows an initial increase with a peak around 21 nm. The critical switching current shows a dip around the same thickness, which is close to the spin diffusion length. The product of the MR ratio and critical current density is about a constant independent of the Co hard layer thickness. Thus, we provide an approach to achieving maximum efficiency (MR ratio) and minimum consumption (critical current) for a practical device.en_US
dc.format.extent 443994 bytes-
dc.format.mimetype application/pdf-
dc.language.iso en_US-
dc.relation (關聯) Appl. Phys. Lett,.96, 093110en_US
dc.title (題名) Compensation between magnetoresistance and switching current in Co/Cu/Co spin valve pillar structureen_US
dc.type (資料類型) articleen