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自旋阀中电流诱导磁化翻转行为的研究 被引量：2

Current-induced magnetization switching in spin valves
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摘要 通过实验研究了一种特殊的反对称自旋阀结构.研究发现,随着外加磁场的增大,该结构纳米器件表现出了一种由"逆CIMS"向"正常CIMS"的转变.这种现象是因为:该反对称自旋阀在不同的外加磁场下有不同的磁化取向,因而引起不同的CIMS行为. Recently, current-induced magnetization switching （CIMS） behavior in current-perpendicular-to-plane （CPP） exchange-biased spin valve （ESPV） nanopillars has been attracting great attention. In this paper, we experimentally study the CIMS in a special antisymmetric ESPV structure. With the increase of the external magnetic field, the device shows a transition from inverted CIMS to normal CIMS, which is possibly due to the different magnetic configuration in the antisymmetric ESPV.
作者 包瑾 徐晓光 姜勇
机构地区 新金属材料国家重点实验室
出处 《物理学报》 SCIE EI CAS CSCD 北大核心 2009年第11期7998-8001,共4页 Acta Physica Sinica
基金 国家自然科学基金(批准号:50831002 50701005) 教育部科学技术研究重大项目(批准号:309006) 科技部重大研究计划(批准号:2007CB936202) 高等学校博士学科点专项科研基金(批准号:20070008024)资助的课题~~
关键词 CPP ESPV CIMS CPP ESPV CIMS
分类号 O482.5 [理学—固体物理]
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参考文献10

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同被引文献26

  • 1Slonczewski J C. Current-driven excitation of magnetic multilayers [ J ]. Journal of Magnetism and Magnetic Ma- terials, 1996, 159(1/2): L1-L7.
  • 2Berger L. Emission of spin waves by a magnetic muhilayer traversed by a current [J]. Physical Review B, 1996, 54 (13) : 9353. A.
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  • 4Katine J A, Albert F J, Buhrman R A, Myers E B, Ralph D C. Current-driven magnetization reversal and spin-wave excitations in Co/Cu/Co pillars [ J]. Physical Review Letters, 2000, 84( 14): 3149-3152.
  • 5Kaka S, Pufall M R, Rippard W It. Spin transfer switc- hing of spin valve nanopillars using nanosecond pulsed cur- rent [J]. Journal of Magnetism and Magnetic Materials, 2005, 286: 375-380.
  • 6Zhao H, Lyle A, Zhang Y, et al. Low writing energy and subnanosecond spin torque transfer switching of in-plane magnetic tunnel junction for spin torque transfer random access memory [ J]. Journal of Applied Physics, 2011, 109(7) : 07C720.
  • 7Lee J M, Lee C M, Ye L X, et al. Switching properties or MgO-based magnetic tunnel junction devices driven by spin-transfer torque in the nanosecond regime [ J]. IEEE Transactions on magnetics, 2011, 47 (3) : 629.
  • 8Gabriel D, Chaves O, Georg W, et al. Micromagnetic study of spin transfer switching with a spin polarization tilted out of the free layer plane [ J ]. Journal of Applied Physics, 2015, 117(17), 17D705.
  • 9Zhang X L, Zhang Z Z, Liu Y W, et al. Simulation of electric-field and spin-transfer-torque induced magnetiza- tion switching in perpendicular magnetic tunnel junctions [J]. Journal of Applied Physics, 2015, 117 (17): 17A701.
  • 10Zhou Y, Zhang H, Liu Y W, et al. Macrospin and micromagnetic studies of tilted polarizer spin-torque nano- oscillators [J]. Journal of Applied Physics, 2012, 112 (6) : 063903.

引证文献2

物理学报
2009年 第11期

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