WebAn approach is presented for the atomistic study of phonon transport in real dielectric nanowires via Green’s functions. The formalism is applied to investigate the phonon flow … WebJul 26, 2012 · Firstly, NEGF is used to derive phonon-phonon Hedin-like functional derivative equations which generates conserving self energy approximations for phonon-phonon interaction. Secondly, for the Landauer-like theory, using the perturbation expansion, we easily obtain anharmonic (or phonon-phonon interaction) corrections to the ballistic …
Effect of wave versus particle phonon nature in thermal transport ...
WebIn this article, we reviewed the phonon NEGF method fromthetheoreticalprogresstonumericalapplicationsaspect. In section 2, we brief reviewed … WebNov 9, 2024 · Phonon NEGF simulation of ballistic heat transport through Si/Ge interface: (a) schematic of numerical model; blue (green) spheres represent Si (Ge); (b) frequency … taco tee shirts
Implementation of Tunneling Phenomena in a CNTFET Compact …
WebMay 4, 2024 · The NEGF formalism also provides a suitable framework for coupled electron-phonon transport [30,31,32,33,34,35,36,37], which is an essential feature of the quantum hybrid systems. The NEGF method, however, requires substantial computational resources and the efficiency of numerical algorithm is of utmost importance for simulating realistic ... WebJan 16, 2024 · Previously, the atomistic NEGF has been demonstrated as an efficient approach to study the interfacial thermal transport. 31, 78,110 Different from the BTE calculations, the NEGF usually does... WebJul 1, 2024 · We compare phonon transport in a simple porous silicon geometry using a full wave approach based on the atomistic Non-Equilibrium Green's Function (NEGF) method, and a particle–based approach using the ray-tracing Monte Carlo (MC) method, and quantify how much of the wave effects MC captures. taco tator tot slow cooker