Increased Gilbert damping in spin valves and magnetic tunnel junctions

被引：23
|
作者：
Lagae, L
Wirix-Speetjens, R
Eyckmans, W
Borghs, S
De Boeck, J
机构：
[1] IMEC, Louvain, Belgium
[2] Katholieke Univ Leuven, ESAT INSYS, Louvain, Belgium
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2005年 / 286卷
关键词：
magnetization dynamics; Gilbert damping; spin-valve; magnetic tunnel junction;
D O I：
10.1016/j.jmmm.2004.09.083
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present a study on the Gilbert damping constant alpha in magnetic multilayers using the time-resolved MOKE technique. All observed alpha-values in Ni80Fe20 thin films with Cu/Ta seed and capping layers can be modeled using a spin pumping model. Investigation in device layers (spin-valves and magnetic tunnel junctions) is consistent with this model. An additional effect of the magnetization state of the pinned layer on free layer damping in spin valves is seen. These insights in the effect of interfaces on magnetic relaxation provide methods for optimization of magnetic devices for numerous high-speed applications. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：291 / 296
页数：6
相关论文
共 50 条
  • [21] Fully magnetic manganite spin filter tunnel junctions
    Prasad, Bhagwati
    Blamire, Mark G.
    APPLIED PHYSICS LETTERS, 2016, 109 (13)
  • [22] Spin dependent transport in hybrid magnetic tunnel junctions
    Chun, SH
    Potashnik, SJ
    Ku, KC
    Schiffer, P
    Samarth, N
    COMPOUND SEMICONDUCTORS 2004, PROCEEDINGS, 2005, 184 : 131 - 134
  • [23] Spin transfer in magnetic tunnel junctions with hot electrons
    Levy, Peter M.
    Fert, Albert
    PHYSICAL REVIEW LETTERS, 2006, 97 (09)
  • [24] Spin-dependent tunnelling in magnetic tunnel junctions
    Tsymbal, EY
    Mryasov, ON
    LeClair, PR
    JOURNAL OF PHYSICS-CONDENSED MATTER, 2003, 15 (04) : R109 - R142
  • [25] Spin torque in magnetic tunnel junctions with asymmetric barriers
    Kalitsov, Alan
    Silvestre, Whasington
    Chshiev, Mairbek
    Velev, Julian P.
    PHYSICAL REVIEW B, 2013, 88 (10)
  • [26] Spin-transfer torque in magnetic tunnel junctions
    Kalitsov, Alan
    Chshiev, Mairbek
    Theodonis, Ioannis
    Kioussis, Nicholas
    Butler, W. H.
    PHYSICAL REVIEW B, 2009, 79 (17)
  • [27] Intrinsic spin noise in MgO magnetic tunnel junctions
    Delgado, F.
    Lopez, K.
    Ferreira, R.
    Fernandez-Rossier, J.
    APPLIED PHYSICS LETTERS, 2013, 102 (06)
  • [28] Spin transfer torque and magnetic dynamics in tunnel junctions
    Ogrodnik, P.
    Wilczynski, M.
    Swirkowicz, R.
    Barnas, J.
    PHYSICAL REVIEW B, 2010, 82 (13):
  • [29] Spin Pumping and Enhanced Gilbert Damping in Thin Magnetic Insulator Films
    Kapelrud, Andre
    Brataas, Arne
    PHYSICAL REVIEW LETTERS, 2013, 111 (09)
  • [30] Spin pumping and enhanced Gilbert damping in thin magnetic insulator films
    Kapelrud, André
    Brataas, Arne
    Physical Review Letters, 2013, 111 (09):
12345