Current-driven non-linear magnetodynamics in exchange-biased spin valves

被引：0
|
作者：
机构：
[1] Seinige, Heidi
[2] Wang, Cheng
[3] Tsoi, Maxim
来源：
Tsoi, Maxim (tsoi@physics.utexas.edu) | 1600年 / American Institute of Physics Inc.卷 / 117期
关键词：
This work investigates the excitation of parametric resonance in exchange-biased spin valves (EBSVs). Using a mechanical point contact; high density dc and microwave currents were injected into the EBSV sample. Observing the reflected microwave power and the small rectification voltage that develops across the contact allows detecting the current-driven magnetodynamics not only in the bulk sample but originating exclusively from the small contact region. In addition to ferromagnetic resonance (FMR); parametric resonance at twice the natural FMR frequency was observed. In contrast to FMR; this non-linear resonance was excited only in the vicinity of the point contact where current densities are high. Power-dependent measurements displayed a typical threshold-like behavior of parametric resonance and a broadening of the instability region with increasing power. Parametric resonance showed a linear shift as a function of applied dc bias which is consistent with the field-like spin-transfer torque induced by current on magnetic moments in EBSV. © 2015 AIP Publishing LLC;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Journal article (JA)
引用
收藏
相关论文
共 50 条
  • [41] Exchange-biased spin valves combining a high magnetoresistance ratio with soft-magnetic behavior
    Kools, JCS
    Lardoux, S
    Roozeboom, F
    APPLIED PHYSICS LETTERS, 1998, 72 (05) : 611 - 613
  • [42] Substantial reduction of critical current for magnetization switching in an exchange-biased spin valve
    Jiang, Y
    Nozaki, T
    Abe, S
    Ochiai, T
    Hirohata, A
    Tezuka, N
    Inomata, K
    NATURE MATERIALS, 2004, 3 (06) : 361 - 364
  • [43] Substantial reduction of critical current for magnetization switching in an exchange-biased spin valve
    Y. Jiang
    T. Nozaki
    S. Abe
    T. Ochiai
    A. Hirohata
    N. Tezuka
    K. Inomata
    Nature Materials, 2004, 3 : 361 - 364
  • [44] Current-driven switching of exchange biased spin-valve giant magnetoresistive nanopillars using a conducting nanoprobe
    Hayakawa, J
    Ito, K
    Fujimori, M
    Heike, S
    Hashizume, T
    Steen, J
    Brugger, J
    Ohno, H
    JOURNAL OF APPLIED PHYSICS, 2004, 96 (06) : 3440 - 3442
  • [45] Thermally assisted current-driven bistable precessional regimes in asymmetric spin valves
    Gmitra, M.
    Barnas, J.
    PHYSICAL REVIEW LETTERS, 2007, 99 (09)
  • [46] Interface engineering of GMR multilayers and exchange-biased spin-valves using ag as a surface modifier
    Chiang, Wen-C.
    Hsu, K. H.
    Lin, J. G.
    IEEE TRANSACTIONS ON MAGNETICS, 2007, 43 (02) : 891 - 893
  • [47] Magnetoresistive performances in exchange-biased spin valves and their roles in low-field magnetic sensing applications
    Van Su Luong
    Anh Tuan Nguyen
    Quoc Khanh Hoang
    Tuyet Nga Nguyen
    Anh Tue Nguyen
    Tuan Anh Nguyen
    Van Cuong Giap
    JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES, 2018, 3 (04): : 399 - 405
  • [48] Room Temperature Electrical Manipulation of Giant Magnetoresistance in Spin Valves Exchange-Biased with BiFeO3
    Allibe, Julie
    Fusil, Stephane
    Bouzehouane, Karim
    Daumont, Christophe
    Sando, Daniel
    Jacquet, Eric
    Deranlot, Cyrille
    Bibes, Manuel
    Barthelemy, Agnes
    NANO LETTERS, 2012, 12 (03) : 1141 - 1145
  • [49] A study of spin-flipping in sputtered IrMn using Py-based exchange-biased spin-valves
    Acharyya, R.
    Nguyen, H. Y. T.
    Pratt, W. P., Jr.
    Bass, J.
    JOURNAL OF APPLIED PHYSICS, 2011, 109 (07)
  • [50] Common exchange-biased spin switching mechanism in orthoferrites
    Fita, I
    Wisniewski, A.
    Puzniak, R.
    Zubov, E. E.
    Markovich, V
    Gorodetsky, G.
    PHYSICAL REVIEW B, 2018, 98 (09)
12345