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Impact of the Oerst...
Impact of the Oersted Field on Droplet Nucleation Boundaries
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- Jiang, Sheng (författare)
- KTH,Material- och nanofysik,KTH Royal Inst Technol, Dept Appl Phys, S-16440 Kista, Sweden;NanOsc AB, S-16440 Kista, Sweden
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- Etesami, Seyyed Ruhollah (författare)
- Univ Gothenburg, Dept Phys, S-41296 Gothenburg, Sweden.
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- Chung, Sunjae (författare)
- Uppsala universitet,KTH,Tillämpad fysik,Uppsala Univ, Dept Phys & Astron, S-75120 Uppsala, Sweden.,Institutionen för fysik och astronomi,KTH Royal Inst Technol, Dept Appl Phys, S-16440 Kista, Sweden
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- Le, Quang Tuan, 1976- (författare)
- KTH,Tillämpad fysik
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- Houshang, Afshin (författare)
- NanOsc AB, S-16440 Kista, Sweden.;Univ Gothenburg, Dept Phys, S-41296 Gothenburg, Sweden.
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- Åkerman, Johan (författare)
- KTH,Tillämpad fysik,KTH Royal Inst Technol, Dept Appl Phys, S-16440 Kista, Sweden;NanOsc AB, S-16440 Kista, Sweden;Univ Gothenburg, Dept Phys, S-41296 Gothenburg, Sweden
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(creator_code:org_t)
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2018
- 2018
- Engelska.
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Ingår i: IEEE Magnetics Letters. - : IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. - 1949-307X .- 1949-3088. ; 9
- Relaterad länk:
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https://urn.kb.se/re...
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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
- We investigate how the Oersted field affects the magnetic droplet nucleation boundary in spin-torque nano-oscillators based on orthogonal spin-valve stacks with a perpendicular magnetic anisotropy Co/Ni free layer and an easy-plane anisotropy Ni80Fe20 fixed layer. The current-field nucleation boundary is determined experimentally using both microwave signal and dc resistance measurements. The Oersted field can, in principle, have an impact on droplet nucleation. This effect is considered approximately using an analytical equation for the nucleation boundary, which is extended to cover fields larger than the fixed-layer saturation field. We test the accuracy of this approach by comparing with micromagnetic simulations. Finally, we carry out a numerical fit to experimental data and find good agreement.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- Spin electronics
- magnetic droplet
- Oersted field
- spin-torque nano-oscillators
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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