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Spin dynamics in a ...
Spin dynamics in a Curie-switch
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- Kravets, Anatolii (författare)
- KTH,Nanostrukturfysik,National Academy of Sciences of Ukraine, Ukraine
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Tovstolytkin, A. I. (författare)
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Dzhezherya, Yu I. (författare)
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- Polishchuk, Dmytro (författare)
- KTH,Nanostrukturfysik,National Academy of Sciences of Ukraine, Ukraine
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Kozak, I. M. (författare)
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- Korenivski, Vladislav (författare)
- KTH,Nanostrukturfysik
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(creator_code:org_t)
- 2015-10-16
- 2015
- Engelska.
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Ingår i: Journal of Physics. - : Institute of Physics (IOP). - 0953-8984 .- 1361-648X. ; 27:44
- Relaterad länk:
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http://arxiv.org/pdf...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Ferromagnetic resonance properties of F-1/f/F-2/AF multilayers, where weakly ferromagnetic spacer f is sandwiched between strongly ferromagnetic layers F-1 and F-2, with F-1 being magnetically soft and F-2-magnetically hard due to exchange pinning to antiferromagnetic layer AF, are investigated. Spacer-mediated exchange coupling is shown to strongly affect the resonance fields of both F-1 and F-2 layers. Our theoretical calculations as well as measurements show that the key magnetic parameters of the spacer, which govern the ferromagnetic resonance in F-1/f/F-2/AF, are the magnetic exchange length (Lambda), effective saturation magnetization at T = 0 (m(0)) and effective Curie temperature (T-C(eff)). The values of these key parameters are deduced from the experimental data for multilayers with f = NixCu100-x, for the key ranges in the Ni-concentration (x = 54 divided by 70 at. %) and spacer thickness (d = 3 divided by 6 nm). The results obtained provide a deeper insight into thermally-controlled spin precession and switching in magnetic nanostructures, with potential applications in spin-based oscillators and memory devices.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- magnetic multilayer
- exchange coupling
- ferromagnetic resonance
- Curie temperature
- diluted ferromagnetic alloy
- Curie-switch
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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