NDLI: Magnetic droplet solitons in orthogonal nano-contact spin torque oscillators

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Magnetic droplet solitons in orthogonal nano-contact spin torque oscillators

Content Provider	Semantic Scholar
Author	Mohseni, S. M. Sani, Sohrab Redjai Dumas, Randy K. Persson, Johan Nguyen, Thi Ngoc Anh Chung, Sunjae Pogoryelov, Ye. Muduli, Pranaba K. Iacocca, Ezio Eklund, Anders Åkerman, Johan
Copyright Year	2014
Abstract	We study microwave signal generation as a function of drive current and applied perpendicular magnetic field in nano-contact spin torque oscillators (NC-STOs) based on orthogonal (pseudo) spin valves where the Co fixed layer has strong easy-plane anisotropy, and the [Co/Ni] free layer has a strong perpendicular magnetic anisotropy. The orthogonal NC-STOs exhibit a dramatic transition from the conventional ferromagnetic resonance-like spin wave mode to a magnetic droplet soliton mode. In particular, the field and current dependence of the droplet soliton near threshold are discussed. Near threshold the droplet soliton undergoes complex dynamics that include mode hopping, as evident in the experimental frequency domain and magnetoresistance response.
Starting Page	84
Ending Page	87
Page Count	4
File Format	PDF HTM / HTML
DOI	10.1016/j.physb.2013.10.023
Alternate Webpage(s)	http://nrl.northumbria.ac.uk/41048/1/Magnetic_droplet_solitons_in_orthogonal_nano_contact_spin_torque_oscillators.pdf
Alternate Webpage(s)	https://doi.org/10.1016/j.physb.2013.10.023
Volume Number	435
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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