Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Zanfrognini, Matteo"'
Autor:
Zanfrognini, Matteo, Plaud, Alexandre, Stenger, Ingrid, Fossard, Frédéric, Sponza, Lorenzo, Schué, Léonard, Paleari, Fulvio, Molinari, Elisa, Varsano, Daniele, Wirtz, Ludger, Ducastelle, François, Loiseau, Annick, Barjon, Julien
Despite its simple crystal structure, layered boron nitride features a surprisingly complex variety of phonon-assisted luminescence peaks. We present a combined experimental and theoretical study on ultraviolet-light emission in hexagonal and rhomboh
Externí odkaz:
http://arxiv.org/abs/2305.17554
Autor:
Zanfrognini, Matteo, Bonacci, Miki, Paleari, Fulvio, Molinari, Elisa, Ruini, Alice, Ferretti, Andrea, Caldas, Marilia J., Varsano, Daniele
In this work we provide a first principles description of the electronic and optical properties of bilayers C$_3$N, with different stacking motifs AB, AB$'$ and AA$'$. Starting from quasi-particle electronic band-structures, we solve the Bethe Salpet
Externí odkaz:
http://arxiv.org/abs/2302.09261
Autor:
Bonacci, Miki, Zanfrognini, Matteo, Molinari, Elisa, Ruini, Alice, Caldas, Marilia J., Ferretti, Andrea, Varsano, Daniele
Publikováno v:
Phys. Rev. Materials, 6, 3, 034009 (2022)
Monolayer C$_3$N is an emerging two-dimensional indirect band gap semiconductor with interesting mechanical, thermal, and electronic properties. In this work we present a description of C$_3$N electronic and dielectric properties, focusing on the so-
Externí odkaz:
http://arxiv.org/abs/2204.11105
Autor:
Montanaro, Angela, Giusti, Francesca, Zanfrognini, Matteo, Di Pietro, Paola, Glerean, Filippo, Jarc, Giacomo, Rigoni, Enrico Maria, Mathengattil, Shahla Y., Varsano, Daniele, Rontani, Massimo, Perucchi, Andrea, Molinari, Elisa, Fausti, Daniele
The competition between the electron-hole Coulomb attraction and the three-dimensional dielectric screening dictates the optical properties of layered semiconductors. In low-dimensional materials, the equilibrium dielectric environment can be signifi
Externí odkaz:
http://arxiv.org/abs/2111.12355
Electron energy loss spectroscopy is consolidating as a powerful tool to explore electronic (as well as vibrational) excitations of matter, including molecules. Performed in a scanning transmission electron microscope, this technique is based on inel
Externí odkaz:
http://arxiv.org/abs/2005.07440
Autor:
Zanfrognini, Matteo, Rotunno, Enzo, Rusz, Jan, Borkowski, Rafal E. Dunin, Karimi, Ebrahim, Frabboni, Stefano, Grillo, Vincenzo
Publikováno v:
Phys. Rev. B 102, 184420 (2020)
In this work we derive sum rules for orbital angular momentum(OAM) resolved electron magnetic chiral dichroism (EMCD) which enable the evaluation of the strength of spin and orbital components of the atomic magnetic moments in a crystalline sample. W
Externí odkaz:
http://arxiv.org/abs/1911.02006
Autor:
Rotunno, Enzo, Zanfrognini, Matteo, Frabboni, Stefano, Rusz, Jan, Borkowski, Rafal E. Dunin, Karimi, Ebrahim, Grillo, Vincenzo
Publikováno v:
Phys. Rev. B 100, 224409 (2019)
We propose a highly efficient atomically-resolved mode of electron magnetic chiral dichroism. This method exploits the recently introduced orbital angular momentum spectrometer to analyze the inelastically scattered electrons allowing for simultaneou
Externí odkaz:
http://arxiv.org/abs/1905.08058
Autor:
Zanfrognini, Matteo, Rotunno, Enzo, Frabboni, Stefano, Sit, Alicia, Karimi, Ebrahim, Hohenester, Ulrich, Grillo, Vincenzo
Recently, a new device to measure the Orbital Angular Momentum (OAM) electronic spectrum after elastic/inelastic scattering in a transmission electron microscope has been introduced. We modified the theoretical framework needed to describe convention
Externí odkaz:
http://arxiv.org/abs/1811.10444
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