8 papers
Resonant Raman spectroscopies beyond density-functional theory
Aleksandr Poliukhin, Corto Babs Aubry, Lorenzo Bastonero +1
Resonant Raman spectroscopy probes, in a single measurement, how electrons and phonons couple in a material. Density-functional theory (DFT) typically reproduces well phonon freque…
Extraction of the self energy and Eliashberg function from angle resolved photoemission spectroscopy using the xARPES code
Thomas P. van Waas, Christophe Berthod, Jan Berges +3
Angle-resolved photoemission spectroscopy is a powerful experimental technique for studying anisotropic many-body interactions through the electron spectral function. Existing atte…
Direct observation of strain and confinement shaping the hole subbands of Ge quantum wells
Enrico Della Valle, Arianna Nigro, Miki Bonacci +6
Germanium-silicon-germanium (Ge/SiGe) heterostructures have emerged as a promising platform for hole-spin quantum technologies and high-mobility electronics, where st…
Elastic Constants and Bending Rigidities from Long-Wavelength Perturbation Expansions
Changpeng Lin, Samuel Poncé, Francesco Macheda +2
Mechanical and elastic properties of materials are among the most fundamental quantities for many engineering and industrial applications. Here, we present a formulation that is ef…
Imaging heat transport in suspended diamond nanostructures with integrated spin defect thermometers
Valentin Goblot, Kexin Wu, Enrico Di Lucente +8
Among all materials, mono-crystalline diamond has one of the highest measured thermal conductivities, with values above 2000 W/m/K at room temperature. This stems from momentum-con…
Carrier mobilities and electron-phonon interactions beyond DFT
Aleksandr Poliukhin, Nicola Colonna, Francesco Libbi +2
Electron-phonon coupling is a key interaction that governs diverse physical processes such as carrier transport, superconductivity, and optical absorption. Calculating such interac…