Twist-induced control of near-field heat radiation between magnetic Weyl semimetals

Abstract

Due to the large anomalous Hall effect, magnetic Weyl semimetals can support nonreciprocal surface plasmon polariton modes in the absence of an external magnetic field. This implies that magnetic Weyl semimetals can find novel application in (thermal) photonics. In this work, we consider the near-field radiative heat transfer between two magnetic Weyl semimetal slabs and show that the heat transfer can be controlled with a relative rotation of the parallel slabs. Thanks to the intrinsic nonreciprocity of the surface modes, this so-called twisting method does not require surface structuring like periodic gratings. The twist-induced control of heat transfer is due to the mismatch of the surface modes from the two slabs with a relative rotation.

6+3 pages, accepted in ACS Photonics

References in corpus (8)

• Topological response in Weyl semimetals and the chiral anomaly
• Observation of topological polaritons and photonic magic angles in twisted van der Waals bi-layers
• Optical soliton formation controlled by angle twisting in photonic moiré lattices
• Magnetic field effects in the near-field radiative heat transfer between planar structures
• Polariton Topological Transition Effects on Radiative Heat Transfer
• Nonreciprocal radiative heat transfer between two planar bodies
• Near-field radiative heat transfer between twisted nanoparticle gratings
• Radiative thermal switch via asymmetric black phosphorus gratings