Publications (4)
Super-suppression of long wavelength phonons in constricted nanoporous geometries
Alex Greaney, S. Aria Hosseini, Laura de Sousa Oliveira +2
In a typical semiconductor material, the majority of heat is carried by long wavelength, long mean-free-path phonons. Nanostructuring strategies to reduce thermal conductivity, a p…
Reduced-Order Model to Predict Thermal Conductivity of Dimensionally-Confined Materials
S. Aria Hosseini, Alex Greaney, Giuseppe Romano
Predicting nanoscale thermal transport in dielectrics requires models, such as the Boltzmann transport equation (BTE), that account for phonon boundary scattering in structures wit…
Spin phonon interactions and magneto-thermal transport behavior in p-Si
Paul Lou, Laura de Sousa Oliveira, Chi Tang +2
The spin-phonon interaction is the dominant process for spin relaxation in Si, and as thermal transport in Si is dominated by phonons, one would expect spin polarization to influen…
Heat current anticorrelation effects leading to thermal conductivity reduction in nanoporous Si
Laura de Sousa Oliveira, S. Aria Hosseini, Alex Greaney +1
Prevailing nanostructuring strategies focus on increasing phonon scattering and reducing the mean-free-path of phonons across the spectrum. In nanoporous Si materials, for example,…