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- Scuola Internazionale Superiore di Studi AvanzatiIT390 papers
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73 papers · 1 filter
Koopmans Meets Bethe-Salpeter: Excitonic Optical Spectra without GW
Joshua Elliott, Nicola Colonna, Margherita Marsili +2
The Bethe-Salpeter Equation (BSE) can be applied to compute from first-principles optical spectra that include the effects of screened electron-hole interactions. As input, BSE cal…
Photoinduced renormalization of Dirac states in BaNiS
Niloufar Nilforoushan, Michele Casula, Marco Caputo +9
By means of pump-probe time- and angle-resolved photoelectron spectroscopy, we provide evidence of a sizeable reduction of the Fermi velocity of out-of-equilibrium Dirac bands in t…
Direct observation of the energy gain underpinning ferromagnetic superexchange in the electronic structure of CrGeTe
Matthew D. Watson, Igor Marković, Federico Mazzola +12
We investigate the temperature-dependent electronic structure of the van der Waals ferromagnet, CrGeTe. Using angle-resolved photoemission spectroscopy, we identify atomic- and…
Brillouin-derived viscoelastic parameters of hydrogel tissue models
Michelle Bailey, Martina Alunni-Cardinali, Noemi Correa +7
Many problems in mechanobiology urgently require characterisation of the micromechanical properties of the fibrous proteins of cells and tissues. Brillouin light scattering has bee…
Excitons bound by photon exchange
Erika Cortese, Linh Tran, Jean-Michel Manceau +5
In contrast to interband excitons in undoped quantum wells, doped quantum wells do not display sharp resonances due to excitonic bound states. In these systems the effective Coulom…
Tunable vortex dynamics in proximity junction arrays: a possible accurate and sensitive 2D THz detector
J. Rezvani, D. Di Gioacchino, C. Gatti +7
An array of superconducting proximity islands has been shown to be highly tunable by electric and magnetic fields. Indeed, a small change in the electric and magnetic field can tun…