A two-scale analytical framework is derived showing nanomagnet chains under AC fields enter a collective heating regime with local temperature variations at the microkelvin level for realistic parameters.
Mehdaoui , author R
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Stochastic LLG and linear response theory agree for weak fields but deviate with sign and size set by ωτ_N, with LRT underestimating SAR by ~70% above resonance at ξ~2.
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Local-to-global heating crossover in chains of nanomagnets: A two-scale analytical framework
A two-scale analytical framework is derived showing nanomagnet chains under AC fields enter a collective heating regime with local temperature variations at the microkelvin level for realistic parameters.
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Specific absorption rate of uniaxial single-domain nanomagnets: stochastic spin dynamics versus linear response theory
Stochastic LLG and linear response theory agree for weak fields but deviate with sign and size set by ωτ_N, with LRT underestimating SAR by ~70% above resonance at ξ~2.