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Stabilization of sliding ferroelectricity through exciton condensation
Matteo D'Alessio, Daniele Varsano, Elisa Molinari +1
Sliding ferroelectricity is a phenomenon that arises from the insurgence of spontaneous electronic polarization perpendicular to the layers of two-dimensional (2D) systems upon the…
Efficient GW calculations for metals from an accurate ab initio polarizability
Giacomo Sesti, Alberto Guandalini, Andrea Ferretti +4
Despite its success in the study of spectroscopic properties, the method presents specific methodological challenges when applied to systems with metallic screening. Here, we…
Excitonic effects in energy loss spectra of freestanding graphene
Alberto Guandalini, Ryosuke Senga, Yung-Chang Lin +8
In this work we perform electron energy-loss spectroscopy (EELS) of freestanding graphene with high energy and momentum resolution to disentangle the quasielastic scattering from t…