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Magnon dispersion i...
Magnon dispersion in bilayers of two-dimensional ferromagnets
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- Ortmanns, Lara Celine, 1990 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Rheinisch-Westfaelische Technische Hochschule Aachen,RWTH Aachen University
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- Bauer, Gerrit E.W. (författare)
- Tohoku University
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Blanter, Yaroslav M. (författare)
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(creator_code:org_t)
- 2021
- 2021
- Engelska.
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Ingår i: Physical Review B. - 2469-9969 .- 2469-9950. ; 103:15
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We determine magnon spectra of an atomic bilayer magnet with ferromagnetic intra- and both ferro- and antiferromagnetic interlayer coupling. Analytic expressions for the full magnon band of the latter case reveal that both exchange interactions govern the fundamental magnon gap. The inter- and intralayer magnetic ordering are not independent: a stronger ferromagnetic intralayer coupling effectively strengthens the antiferromagnetic interlayer coupling as we see from comparison of two bilayer systems. The trivial topology of these exchange-anisotropy spin models without spin-orbit interaction excludes a magnon thermal Hall effect.
Ämnesord
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Teoretisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Theoretical Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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- art (ämneskategori)
- ref (ämneskategori)
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