Research paperExperimental CharacterizationTheoreticalDirect observation of the vanishing electron energy-loss cross section in grapheneAlberto Guandalini, Francesco Mauri, Ryosuke Senga, Yung-Chang Lin et al.arXiv·2025·10.48550/arxiv.2406.02998·arXiv:2406.02998AbstractIn transmission electron energy-loss spectroscopy, the cross section in 2D is quenched by kinematic effects once the momentum transfer becomes smaller than a critical value set by qz, the momentum loss parallel to the beam. Our highly momentum and energy resolved setup is instrumental in delivering the experimental verification of quenched 2D EEL spectra on freestanding graphene at low momentum transfer. We retrieve the intrinsic uniform dielectric response of graphene from measured spectra by quantifying the kinematic suppression.Read more
Freestanding graphene sample suspended on a TEM grid and measured by transmission electron energy-loss spectroscopy.1 characterization3 properties2 figuresExperimentalCStudied MaterialExpand
Research paperExperimental CharacterizationTheoreticalDirect observation of the vanishing electron energy-loss cross section in grapheneAlberto Guandalini, Francesco Mauri, Ryosuke Senga, Yung-Chang Lin et al.arXiv·2025·10.48550/arxiv.2406.02998·arXiv:2406.02998AbstractIn transmission electron energy-loss spectroscopy, the cross section in 2D is quenched by kinematic effects once the momentum transfer becomes smaller than a critical value set by qz, the momentum loss parallel to the beam. Our highly momentum and energy resolved setup is instrumental in delivering the experimental verification of quenched 2D EEL spectra on freestanding graphene at low momentum transfer. We retrieve the intrinsic uniform dielectric response of graphene from measured spectra by quantifying the kinematic suppression.Read more
Freestanding graphene sample suspended on a TEM grid and measured by transmission electron energy-loss spectroscopy.1 characterization3 properties2 figuresExperimentalCStudied MaterialExpand
Research paperExperimental CharacterizationTheoreticalDirect observation of the vanishing electron energy-loss cross section in grapheneAlberto Guandalini, Francesco Mauri, Ryosuke Senga, Yung-Chang Lin et al.arXiv·2025·10.48550/arxiv.2406.02998·arXiv:2406.02998AbstractIn transmission electron energy-loss spectroscopy, the cross section in 2D is quenched by kinematic effects once the momentum transfer becomes smaller than a critical value set by qz, the momentum loss parallel to the beam. Our highly momentum and energy resolved setup is instrumental in delivering the experimental verification of quenched 2D EEL spectra on freestanding graphene at low momentum transfer. We retrieve the intrinsic uniform dielectric response of graphene from measured spectra by quantifying the kinematic suppression.Read more
Freestanding graphene sample suspended on a TEM grid and measured by transmission electron energy-loss spectroscopy.1 characterization3 properties2 figuresExperimentalCStudied MaterialExpand
Research paperExperimental CharacterizationTheoreticalDirect observation of the vanishing electron energy-loss cross section in grapheneAlberto Guandalini, Francesco Mauri, Ryosuke Senga, Yung-Chang Lin et al.arXiv·2025·10.48550/arxiv.2406.02998·arXiv:2406.02998AbstractIn transmission electron energy-loss spectroscopy, the cross section in 2D is quenched by kinematic effects once the momentum transfer becomes smaller than a critical value set by qz, the momentum loss parallel to the beam. Our highly momentum and energy resolved setup is instrumental in delivering the experimental verification of quenched 2D EEL spectra on freestanding graphene at low momentum transfer. We retrieve the intrinsic uniform dielectric response of graphene from measured spectra by quantifying the kinematic suppression.Read more
Freestanding graphene sample suspended on a TEM grid and measured by transmission electron energy-loss spectroscopy.1 characterization3 properties2 figuresExperimentalCStudied MaterialExpand