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Angular Dependent A...
Angular Dependent Auto-Oscillations by Spin-Transfer and Spin-Orbit Torques in Three-Terminal Magnetic Tunnel Junctions
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Cai, W. L. (författare)
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- Kumar, Akash (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
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Du, A. (författare)
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Shi, K. W. (författare)
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Xiao, R. (författare)
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Cao, K. H. (författare)
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Yin, J. L. (författare)
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- Åkerman, Johan, 1970 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
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Zhao, W. S. (författare)
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(creator_code:org_t)
- Institute of Electrical and Electronics Engineers (IEEE), 2023
- 2023
- Engelska.
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Ingår i: Ieee Electron Device Letters. - : Institute of Electrical and Electronics Engineers (IEEE). - 0741-3106 .- 1558-0563. ; 44:5, s. 861-864
- Relaterad länk:
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Spintronic oscillators are promising candidates for neuromorphic computing due to their true miniaturization, non-linearity and synchronization properties. However, spin torque nano-oscillators are excited by current-induced spin-transfer torque which may cause high power consumption and reliability problems. Spin Hall nano-oscillators can realize higher energy efficiency, while their relatively low power emission limits their further applications. Here, we demonstrate three-terminal magnetic tunnel junction based spin torque nano-oscillators excited by the combination of spin-transfer and spin-orbit torques under different angle configurations. Thanks to the large spin Hall angle (-0.278) of W, the ratio between threshold current density of spin-transfer and spin-orbit torques for auto-oscillations can reach 0.6, indicating their high energy efficiency. Furthermore, we observe that the ratio has a sine function dependence on the angle between the spin-polarization directions of spin-transfer and spin-orbit torques. Our work could benefit the development of high-efficiency spintronic oscillators and their large network designs.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- Magnetic tunneling
- Torque
- Spintronics
- Microwave oscillators
- Magnetic
- fields
- Threshold current
- Synchronization
- Spin torque nano-oscillator
- three-terminal magnetic tunnel junction
- angular dependence
- spin-transfer and spin-orbit torques
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Cai, W. L.
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Kumar, Akash
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Du, A.
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Shi, K. W.
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Xiao, R.
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Cao, K. H.
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visa fler...
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Yin, J. L.
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Åkerman, Johan, ...
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Zhao, W. S.
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Fysik
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Ieee Electron De ...
- Av lärosätet
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Göteborgs universitet