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Impact of Random Gr...
Impact of Random Grain Structure on Spin-Hall Nano-Oscillator Modal Stability
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- Capriata, Corrado Carlo Maria (författare)
- KTH,Elektronik och inbyggda system
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- Jiang, S. (författare)
- Northwestern Polytech Univ, Sch Microelect, Xian 710072, Peoples R China.
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- Åkerman, Johan, 1970 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU),Univ Gothenburg, Dept Phys, S-40530 Gothenburg, Sweden.
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- Malm, B. Gunnar, 1972- (författare)
- KTH,Elektronik och inbyggda system
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(creator_code:org_t)
- Institute of Electrical and Electronics Engineers (IEEE), 2022
- 2022
- Engelska.
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Ingår i: IEEE Electron Device Letters. - : Institute of Electrical and Electronics Engineers (IEEE). - 0741-3106 .- 1558-0563. ; 43:2, s. 312-315
- Relaterad länk:
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https://doi.org/10.1...
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Spin-Hall nano-oscillators are a promising class of microwave spintronic devices with potential applications in RF/microwave communication and neuromorphic computing. The nano-constriction spin-Hall nano-oscillators (NC-SHNO) have relatively high power, narrow linewidth, and low drive current. Several synchronization schemes e.g. arrays of spin-wave coupled oscillators have been proposed for more stable operation and higher output power. For such arrays, it is crucial to have good oscillator stability and small device-to-device variability. Here, a micromagnetic simulation technique is proposed that includes realistic material properties and hence enables variability and modal stability to be investigated. It is demonstrated, using both measurements and simulation, that the presence of physical grains in the free magnetic layer can induce multiple oscillation modes or frequency sidebands. Our investigation could help in the development of more stable NC-SHNOs that would enable oscillator arrays with stronger synchronization. Author
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- Amplitude modulation
- Couplings
- Micromagnetic simulations
- microwave measurements
- modal stability
- Nanoscale devices
- SHNO
- spintronics
- Stability criteria
- Synchronization
- Thermal stability
- Microwave oscillators
- Spin waves
- Microwave communications
- Nano-oscillator
- Nanoscale device
- Neuromorphic computing
- Random grains
- Spintronics device
- Stability criterions
- Micromagnetic simulations
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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