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Higher-order ferrom...
Higher-order ferromagnetic resonances in periodic arrays of synthetic-antiferromagnet nanodisks
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- Borynskyi, V. Yu (författare)
- NAS Ukraine, Inst Magnetism, 36-b Akad Vernadsky Blvd, UA-03142 Kiev, Ukraine.;MES Ukraine, 36-b Akad Vernadsky Blvd, UA-03142 Kiev, Ukraine.
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- Polishchuk, Dmytr (författare)
- KTH,Nanostrukturfysik,NAS Ukraine, Inst Magnetism, 36-b Akad Vernadsky Blvd, UA-03142 Kiev, Ukraine.;MES Ukraine, 36-b Akad Vernadsky Blvd, UA-03142 Kiev, Ukraine.
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- Melnyk, A. K. (författare)
- NAS Ukraine, Inst Sorpt & Problems Endoecol, 13 Naumov Str, UA-03164 Kiev, Ukraine.
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- Kravets, Anatolii (författare)
- KTH,Nanostrukturfysik,NAS Ukraine, Inst Magnetism, 36-b Akad Vernadsky Blvd, UA-03142 Kiev, Ukraine.;MES Ukraine, 36-b Akad Vernadsky Blvd, UA-03142 Kiev, Ukraine.
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Tovstolytkin, A. , I (författare)
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- Korenivski, Vladislav, Professor (författare)
- KTH,Nanostrukturfysik
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NAS Ukraine, Inst Magnetism, 36-b Akad Vernadsky Blvd, UA-03142 Kiev, Ukraine;MES Ukraine, 36-b Akad Vernadsky Blvd, UA-03142 Kiev, Ukraine. Nanostrukturfysik (creator_code:org_t)
- AIP Publishing, 2021
- 2021
- Engelska.
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Ingår i: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 119:19
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- We investigate spin dynamics in nanodisk arrays of synthetic-antiferromagnets (SAF) made of Py/NiCu/Py trilayers, where the NiCu spacer undergoes a Curie transition at about 200 K. The observed ferromagnetic resonance spectra have three distinct resonance modes at room temperature, which are fully recreated in our micromagnetic simulations, showing also how the intra-SAF asymmetry can be used to create and control the higher-order resonances in the structure. Below the Curie temperature of the spacer, the system effectively transitions into a single-layer nanodisk array with only two resonance modes. Our results show how multilayering of nanoarrays can add tunable GHz functionality relevant for such rapidly developing fields as magnetic metamaterials, magnonic crystals, arrays of spin-torque oscillators, and neuromorphic junctions.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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