Superconducting Coherence Peak in Near-Field Radiative Heat Transfer

Abstract

Enhancement and peaks in near-field radiative heat transfer (NFRHT) typically arise due to surface phonon-polaritons, plasmon-polaritons, and electromagnetic (EM) modes in structured materials. However, the role of material quantum coherence in enhancing near-field radiative heat transfer remains unexplored. Here, we unravel that NFRHT in superconductor-ferromagnetic systems displays a unique peak at the superconducting phase transition that originates from the quantum coherence of Bogoliubov quasiparticles in superconductors. Our theory takes into account evanescent EM radiation emanating from fluctuating currents related to Cooper pairs and Bogoliubov quasiparticles in stark contrast to the current-current correlations induced by free electrons in conventional materials. Our proposed NFRHT configuration exploits ferromagnetic resonance at frequencies deep inside the superconducting band gap to isolate this superconducting coherence peak. Furthermore, we reveal that Cooper pairs and Bogoliubov quasiparticles have opposite effects on near-field thermal radiation and isolate their effects on many-body radiative heat transfer near superconductors. Our proposed phenomenon can have applications for developing thermal isolators and heat sinks in superconducting circuits.

12 pages, 6 figures

References in corpus (22)

• Broadband super-Planckian thermal emission from hyperbolic metamaterials
• Near-field Radiative Heat Transfer in Many-Body Systems
• Near-field heat transfer between graphene/hBN multilayers
• Effects of spatial dispersion in near-field radiative heat transfer between two parallel metallic surfaces
• Dissipative Van der Waals interaction between a small particle and a metal surface
• Normal Metal-Superconductor Near-Field Thermal Diodes and Transistors
• Extreme Near-Field Heat Transfer Between Gold Surfaces
• Manipulating coherence of near-field thermal radiation in time-modulated systems
• Bogoliubov angle and visualization of particle-hole mixture in superconductors
• Particle-hole asymmetric superconducting coherence peaks in overdoped cuprates
• Unconventional Thermophotonic Charge Density Wave
• Strong suppression of near-field radiative heat transfer by superconductivity in NbN
• Temperature of a nanoparticle above a substrate under radiative heating and cooling
• Existence of Hebel-Slichter peak in unconventional kagome superconductors
• Limits to Quantum Gate Fidelity from Near-Field Thermal and Vacuum Fluctuations
• Giant Enhancement of Vacuum Friction in Spinning YIG Nanospheres
• Heat radiation and transfer for nanoparticles in the presence of a cylinder
• Temporal coupled-mode theory for thermal emission from multiple arbitrarily coupled resonators
• Near-field radiative heat transfer between a nanoparticle and a graphene grating
• Electrical conductivity and nuclear magnetic resonance relaxation rate of Eliashberg superconductors in the weak-coupling limit
• Nanophotonic Super-dephasing in Collective Atom-Atom Interactions
• Unconventional Coherence Peak in Cuprate Superconductors