Spin Torque-Generated Magnetic Droplet Solitons

Science ◽  
2013 ◽  
Vol 339 (6125) ◽  
pp. 1295-1298 ◽  
Author(s):  
S. M. Mohseni ◽  
S. R. Sani ◽  
J. Persson ◽  
T. N. A. Nguyen ◽  
S. Chung ◽  
...  
Keyword(s):  
Spin Torque ◽  
Magnetic Droplet

scholarly journals Erratum: Magnetic droplet nucleation boundary in orthogonal spin-torque nano-oscillators

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Sunjae Chung ◽  
Anders Eklund ◽  
Ezio Iacocca ◽  
Seyed Majid Mohseni ◽  
Sohrab R. Sani ◽  
...  
Keyword(s):  
Spin Torque ◽  
Droplet Nucleation ◽  
Magnetic Droplet

scholarly journals Magnetic droplet solitons in orthogonal nano-contact spin torque oscillators

2014 ◽  
Vol 435 ◽  
pp. 84-87 ◽  
Author(s):  
S.M. Mohseni ◽  
S.R. Sani ◽  
R.K. Dumas ◽  
J. Persson ◽  
T.N. Anh Nguyen ◽  
...  
Keyword(s):  
Spin Torque ◽  
Magnetic Droplet ◽  
Spin Torque Oscillators

Using Magnetic Droplet Nucleation to Determine the Spin Torque Efficiency and Asymmetry in Cox(Ni,Fe)1−x Thin Films

2018 ◽  
Vol 10 (5) ◽  
Author(s):  
Sheng Jiang ◽  
Sunjae Chung ◽  
Quang Tuan Le ◽  
Hamid Mazraati ◽  
Afshin Houshang ◽  
...  
Keyword(s):  
Thin Films ◽  
Spin Torque ◽  
Droplet Nucleation ◽  
Magnetic Droplet

Spin Torque Nano Oscillators as Potential Terahertz (THz) Communications Devices

2009 ◽  
Author(s):  
Alma E. Wickenden ◽  
Chris Fazi ◽  
Ben Huebschman ◽  
Roger Kaul ◽  
Andrew C. Perrella ◽  
...  
Keyword(s):  
Spin Torque ◽  
Thz Communications

scholarly journals Electrical characterisation of higher order spin wave modes in vortex-based magnetic tunnel junctions

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Alex. S. Jenkins ◽  
Lara San Emeterio Alvarez ◽  
Samh Memshawy ◽  
Paolo Bortolotti ◽  
Vincent Cros ◽  
...  
Keyword(s):  
Spin Wave ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Higher Order ◽  
Spin Torque ◽  
Micromagnetic Simulations ◽  
Higher Order Modes ◽  
Spin Diode ◽  
Super High Frequency ◽  
Wave Modes

AbstractNiFe-based vortex spin-torque nano-oscillators (STNO) have been shown to be rich dynamic systems which can operate as efficient frequency generators and detectors, but with a limitation in frequency determined by the gyrotropic frequency, typically sub-GHz. In this report, we present a detailed analysis of the nature of the higher order spin wave modes which exist in the Super High Frequency range (3–30 GHz). This is achieved via micromagnetic simulations and electrical characterisation in magnetic tunnel junctions, both directly via the spin-diode effect and indirectly via the measurement of the coupling with the gyrotropic critical current. The excitation mechanism and spatial profile of the modes are shown to have a complex dependence on the vortex core position. Additionally, the inter-mode coupling between the fundamental gyrotropic mode and the higher order modes is shown to reduce or enhance the effective damping depending upon the sense of propagation of the confined spin wave.

scholarly journals Impact of intragrain spin wave reflections on nanocontact spin torque oscillators

2021 ◽  
Vol 103 (21) ◽  
Author(s):  
Anders J. Eklund ◽  
Mykola Dvornik ◽  
Fatjon Qejvanaj ◽  
Sheng Jiang ◽  
Sunjae Chung ◽  
...  
Keyword(s):  
Spin Wave ◽  
Spin Torque ◽  
Wave Reflections ◽  
Spin Torque Oscillators
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