2000 character limit reached
Current-induced magnon trapping in spin torque oscillation (2403.11618v1)
Published 18 Mar 2024 in cond-mat.mes-hall and cond-mat.str-el
Abstract: Spin torque nano-oscillators realized by magnetization dynamics trapped in a current-induced potential are reported. We fabricated Ni${81}$Fe${19}$/Pt nanostructures and measured current-induced microwave emission from the structures. The result shows an increase in the magnitude and spectral narrowing of the microwave emission. We demonstrate that the current-induced magnetic field suppresses magnon radiation loss and significantly reduces the linewidth and the threshold current required for the spin torque oscillation.
- J. C. Slonczewski, Journal of Magnetism and Magnetic Materials 159, L1 (1996).
- L. Berger, Physical Review B 54, 9353 (1996).
- A. Slavin and V. Tiberkevich, IEEE Transactions on Magnetics 45, 1875 (2009).
- R. Liu, W. Lim, and S. Urazhdin, Physical Review Letters 110, 147601 (2013).
- H. Ulrichs, V. Demidov, and S. Demokritov, Applied Physics Letters 104, 042407 (2014).
- R. Verba, Ukrainian Journal of Physics 64, 947 (2019).
- A. Slavin and V. Tiberkevich, Physical Review Letters 95, 237201 (2005).
- M. Dvornik, A. A. Awad, and J. Åkerman, Physical Review Applied 9, 014017 (2018).
Collections
Sign up for free to add this paper to one or more collections.
Paper Prompts
Sign up for free to create and run prompts on this paper using GPT-5.