Latella, IvanBen Abdallah, PhilippeNikbakht, Moladad2021-07-162021-07-162021-07-122469-9950https://hdl.handle.net/2445/179158Radiative thermal diodes based on two-element structures rectify heat flows thanks to a temperature dependence of material optical properties. The heat transport asymmetry through these systems, however, remains weak without a significant change in material properties with the temperature. Here we explore the heat transport in three-element radiative systems and demonstrate that a strong asymmetry in the thermal conductance can appear because of many-body interactions, without any dependence of optical properties on the temperature. The analysis of transport in three-body systems made with polar dielectrics and metallic layers reveals that rectification coefficients exceeding 50% can be achieved in the near-field regime with temperature differences of about 200 K. This work paves the way for compact devices to rectify near-field radiative heat fluxes over a broad temperature range and could have important applications in the domain of nanoscale thermal management.8 p.application/pdfeng(c) American Physical Society, 2021Propietats tèrmiquesPropietats òptiquesTransferència radiativaThermal propertiesOptical propertiesRadiative transferinfo:eu-repo/semantics/article7132052021-07-16info:eu-repo/semantics/openAccess