Dynamical thermal near-field routing with the non-reciprocal Weyl semi-metal Co₃Sn₂S₂

2025/05/30 by Naeimi, A., Biehs, S. -A. · 1 citation
#FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall)

paper · doi:10.48550/arxiv.2505.24512

Abstract

We demonstrate theoretically the non-reciprocal heating dynamics of two nanoparticles in the vicinity of a substrate all made of the ferromagnetic Weyl semi-metal Co₃Sn₂S₂. We show that the thermal routing effect is due to a spin-spin coupling mechanism between the nanoparticle resonances and the non-reciprocal surface modes of the substrate. Our numerical results indicate that the non-reciprocal heating effect is on the order of 22.5% of the applied temperature differences. This strong rounting effect paves the way for first experimental realizations employing Weyl semi-metals and applications in nanoscale thermal management.

Citations

• Efficiency and Mechanism of Heat Flux Rectification with Non-Reciprocal Surface Waves in Weyl-Semi-Metals
• Radiative Corbino effect in nonreciprocal many-body systems
• Weak antilocalization and ferromagnetism in magnetic Weyl semimetal Co3Sn2S2
• Broadband circularly polarized thermal radiation from magnetic Weyl semimetals
• Anisotropic thermal magnetoresistance for an active control of radiative heat transfer

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