4 papers
Thermal Conductivity Of Monolayer Hexagonal Boron Nitride: Four-Phonon Scattering And Quantum Sampling Effects
José Pedro Alvarinhas Batista, Matthieu J. Verstraete, Aloïs Castellano
Monolayer hexagonal boron nitride is a prototypical planar 2-dimensional system material and has been the subject of many investigations of its exceptional vibrational, spectroscop…
Fluctuation-dissipation and virtual processes in interacting phonon systems
Aloïs Castellano, J. P. Alvarinhas Batista, Matthieu J. Verstraete
Phonon-phonon interactions are fundamental to understanding a wide range of material properties, including thermal transport and vibrational spectra. In conventional perturbative a…
Electron-mediated anharmonicity and its role in the Raman spectrum of graphene
Nina Girotto Erhardt, Aloïs Castellano, J. P. Alvarinhas Batista +4
The Raman active G mode in graphene exhibits strong coupling to electrons, yet the comprehensive treatment of this interaction in the calculation of its temperature-dependent Raman…
Mode-coupling formulation of heat transport in anharmonic materials
Aloïs Castellano, J. P. Alvarinhas Batista, Olle Hellman +1
The temperature-dependent phonons are a generalization of interatomic force constants varying in T, which as found widespread use in computing the thermal transport of materials. A…