Linear and nonlinear spin-wave mode localization in a spin-torque oscillator with a field well

2017 ◽  
Author(s):  
R.V. Verba ◽  
V.S. Tiberkevich ◽  
A.N. Slavin
Keyword(s):  
Spin Wave ◽  
Wave Mode ◽  
Spin Torque ◽  
Mode Localization ◽  
Spin Wave Mode ◽  
Linear And Nonlinear

scholarly journals Interplay of Linear and Nonlinear Localization Mechanisms in Spin-Torque Oscillators with a Field Well

2019 ◽  
Vol 64 (10) ◽  
pp. 947 ◽  
Author(s):  
R. V. Verba
Keyword(s):  
Wave Mode ◽  
Spin Torque ◽  
Nonlinear Frequency ◽  
Magnetization Dynamics ◽  
Nonlinear Localization ◽  
Generation Mode ◽  
Spin Wave Mode ◽  
Linear And Nonlinear ◽  
Generation Power ◽  
Nonlinear Frequency Shift

The magnetization dynamics in a spin-torque oscillator with nonuniform profile of a static magnetic field creating a field well is studied by analytic calculations and numerical simulations. It is demonstrated that, in the case of sufficiently deep and narrow field well, the linear localization in the field well dominates the nonlinear self-localization, despite a negative nonlinear frequency shift. A change of the localization mechanism results in a qualitatively different dependence of the generation power on the driving current. For the dominant linear localization, the soft generation mode is realized, while, for the nonlinear self-localization, we observe a hard mode of auto-oscillator excitation. Simultaneously, a difference in the profiles of the excited spin-wave mode can become evident and distinguishable in experiments only in the case of a nonsymmetric field well.

scholarly journals Electrical detection of magnon-photon interactions via an auxiliary spin-wave mode

2020 ◽  
Vol 102 (1) ◽  
Author(s):  
Peng-Chao Xu ◽  
J. W. Rao ◽  
Y. Wang ◽  
Y. S. Gui ◽  
John Q. Xiao ◽  
...  
Keyword(s):  
Spin Wave ◽  
Wave Mode ◽  
Electrical Detection ◽  
Spin Wave Mode ◽  
Photon Interactions

Observation of FMR Surface Spin Wave Mode in Bulk Amorphous Ferromagnets

1985 ◽  
Vol 128 (1) ◽  
pp. 219-222 ◽  
Author(s):  
Z. Frait ◽  
D. Fraitová ◽  
N. Zárusová
Keyword(s):  
Spin Wave ◽  
Wave Mode ◽  
Spin Wave Mode ◽  
Surface Spin ◽  
Amorphous Ferromagnets

The surface spin-wave mode in FMR of bulk metal ferromagnets

1972 ◽  
Vol 40 (1) ◽  
pp. 29-30 ◽  
Author(s):  
L. Murtinová ◽  
Z. Frait
Keyword(s):  
Spin Wave ◽  
Wave Mode ◽  
Bulk Metal ◽  
Spin Wave Mode ◽  
Surface Spin

Azimuthal-spin-wave-mode-driven vortex-core reversals

2015 ◽  
Vol 117 (2) ◽  
pp. 023904 ◽  
Author(s):  
Myoung-Woo Yoo ◽  
Sang-Koog Kim
Keyword(s):  
Spin Wave ◽  
Vortex Core ◽  
Wave Mode ◽  
Spin Wave Mode

scholarly journals Exchange anisotropy pinning of a standing spin-wave mode

2011 ◽  
Vol 83 (5) ◽  
Author(s):  
R. Magaraggia ◽  
K. Kennewell ◽  
M. Kostylev ◽  
R. L. Stamps ◽  
M. Ali ◽  
...  
Keyword(s):  
Spin Wave ◽  
Wave Mode ◽  
Exchange Anisotropy ◽  
Spin Wave Mode
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