Spin Hall angle quantification from spin pumping and microwave photoresistance

被引：137
作者：
Feng, Z. [1 ,2 ]
Hu, J. [1 ,2 ]
Sun, L. [1 ,2 ]
You, B. [1 ,2 ]
Wu, D. [1 ,2 ]
Du, J. [1 ,2 ]
Zhang, W. [1 ,2 ]
Hu, A. [1 ,2 ]
Yang, Y. [3 ]
Tang, D. M. [3 ]
Zhang, B. S. [3 ]
Ding, H. F. [1 ,2 ]
机构：
[1] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China
[2] Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China
[3] Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Jiangsu, Peoples R China
来源：
PHYSICAL REVIEW B | 2012年 / 85卷 / 21期
关键词：
CHARGE;
D O I：
10.1103/PhysRevB.85.214423
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present a method to quantify the spin Hall angle (SHA) with spin pumping and microwave photoresistance measurements. With this method we separate the inverse spin Hall effect (ISHE) from other unwanted effects for permalloy/Pt bilayers using out-of-plane microwave excitation. Through microwave photoresistance measurements, the in-and out-of-plane precessing angles of the magnetization are determined and enabled for the exact determination of the injected pure spin current. This method is demonstrated with an almost perfect Lorentz line shape for the obtained ISHE signal and the frequency independent SHA value as predicted by theory. By varying the Pt thickness, the SHA and spin-diffusion length of Pt is quantified as 0.012 +/- 0.002 and 8.3 +/- 0.9 nm, respectively.
引用
收藏
页数：7
相关论文
共 36 条
  • [1] Inverse spin-Hall effect induced by spin pumping in metallic system
    Ando, K.
    Takahashi, S.
    Ieda, J.
    Kajiwara, Y.
    Nakayama, H.
    Yoshino, T.
    Harii, K.
    Fujikawa, Y.
    Matsuo, M.
    Maekawa, S.
    Saitoh, E.
    [J]. JOURNAL OF APPLIED PHYSICS, 2011, 109 (10)
  • [2] Angular dependence of inverse spin-Hall effect induced by spin pumping investigated in a Ni81Fe19/Pt thin film
    Ando, K.
    Kajiwara, Y.
    Takahashi, S.
    Maekawa, S.
    Takemoto, K.
    Takatsu, M.
    Saitoh, E.
    [J]. PHYSICAL REVIEW B, 2008, 78 (01)
  • [3] Spin pumping and anisotropic magnetoresistance voltages in magnetic bilayers: Theory and experiment
    Azevedo, A.
    Vilela-Leao, L. H.
    Rodriguez-Suarez, R. L.
    Santos, A. F. Lacerda
    Rezende, S. M.
    [J]. PHYSICAL REVIEW B, 2011, 83 (14)
  • [4] Spintronics
    Bader, S. D.
    Parkin, S. S. P.
    [J]. ANNUAL REVIEW OF CONDENSED MATTER PHYSICS, VOL 1, 2010, 1 : 71 - 88
  • [5] Electrical detection of spin pumping: dc voltage generated by ferromagnetic resonance at ferromagnet/nonmagnet contact
    Costache, M. V.
    Watts, S. M.
    van der Wal, C. H.
    van Wees, B. J.
    [J]. PHYSICAL REVIEW B, 2008, 78 (06)
  • [6] Dyakonov M. I., 2008, SPIN PHYS SEMICONDUC, P212
  • [7] Spin Hall angle versus spin diffusion length: Tailored by impurities
    Gradhand, Martin
    Fedorov, Dmitry V.
    Zahn, Peter
    Mertig, Ingrid
    [J]. PHYSICAL REVIEW B, 2010, 81 (24)
  • [8] Realization of a room-temperature spin dynamo: The spin rectification effect
    Gui, Y. S.
    Mecking, N.
    Zhou, X.
    Williams, Gwyn
    Hu, C. -M.
    [J]. PHYSICAL REVIEW LETTERS, 2007, 98 (10)
  • [9] Electrical detection of the ferromagnetic resonance: Spin-rectification versus bolometric effect
    Gui, Y. S.
    Mecking, N.
    Wirthmann, A.
    Bai, L. H.
    Hu, C.-M.
    [J]. APPLIED PHYSICS LETTERS, 2007, 91 (08)
  • [10] Intrinsic spin Hall effect in platinum: First-principles calculations
    Guo, G. Y.
    Murakami, S.
    Chen, T. -W.
    Nagaosa, N.
    [J]. PHYSICAL REVIEW LETTERS, 2008, 100 (09)
1234