2017/10/31 by Jian Feng Kong, Leonid Levitov, Dorri Halbertal +2 · 27 citations
Engineering · Materials Science · Physics and Astronomy · #Atomic physics #Condensed matter physics #Electron #Electron cooling #Graphene #Graphene research and applications #Lattice (music) #Materials science #Nanotechnology #Nuclear physics #Optics #Phonon #Physics #Scattering #Thermal Radiation and Cooling Technologies #Thermal properties of materials #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.97.245416
published in Physical review. B./Physical review. B 97(24) (American Physical Society)
openalex publication_date 2018/06/19 · arxiv created 2018/06/25 · arxiv updated 2018/06/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Novel ways to manipulate electron-lattice cooling in solids are of wide interest for both fundamental and applied research. This article describes a mechanism of tunable electron-lattice cooling mediated by defects in a graphene lattice, representing resonant scatterers with energy levels close to the Dirac point. The defects produce a resonant enhancement of cooling, which is analogous to the well-known Purcell effect in optics. Namely, the emission rate of phonons is greatly enhanced when the electronic Fermi energy is tuned to match the defect resonance energy. The ability to control both the cooling rate through electronic gating and the spatial location of cooling through precise defect engineering opens a route to designing cooling pathways in nanodevices.