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Energy and magnetiz...
Energy and magnetization transport in nonequilibrium macrospin systems
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- Borlenghi, Simone (author)
- Uppsala universitet,KTH,Material- och nanofysik,Uppsala University, Sweden,Materialteori
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Iubini, Stefano (author)
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Lepri, Stefano (author)
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- Chico, Jonathan (author)
- Uppsala universitet,Materialteori
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- Bergqvist, Lars (author)
- KTH,Materialfysik, MF
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- Delin, Anna (author)
- Uppsala universitet,KTH,Materialfysik, MF,Uppsala University, Sweden,Materialteori
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- Fransson, Jonas (author)
- Uppsala universitet,Materialteori
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(creator_code:org_t)
- 2015
- 2015
- English.
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In: Physical Review E. Statistical, Nonlinear, and Soft Matter Physics. - 1539-3755 .- 1550-2376. ; 92:1
- Related links:
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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
Subject headings
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- We investigate numerically the magnetization dynamics of an array of nanodisks interacting through the magnetodipolar coupling. In the presence of a temperature gradient, the chain reaches a nonequilibrium steady state where energy and magnetization currents propagate. This effect can be described as the flow of energy and particle currents in an off-equilibrium discrete nonlinear Schrodinger (DNLS) equation. This model makes transparent the transport properties of the system and allows for a precise definition of temperature and chemical potential for a precessing spin. The present study proposes a setup for the spin-Seebeck effect, and shows that its qualitative features can be captured by a general oscillator-chain model.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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