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pro vyhledávání: '"Honet, Antoine"'
Autor:
Honet, Antoine, Todri-Sanial, Aida
We perform generalized gradient approximation (GGA) simulations of interfaces between two Conductive Metal-Oxides (CMO, namely TaO and TiO) and cubic hafnium oxide ($HfO_2$) in the context of bilayer Resistive Random Access Memory (ReRAM) devices. We
Externí odkaz:
http://arxiv.org/abs/2407.09238
We conduct a theoretical examination of the electronic and magnetic characteristics of end-modified 7-atom wide armchair graphene nanoribbons (AGNRs). Our investigation is performed within the framework of a single-band Hubbard model, beyond a mean-f
Externí odkaz:
http://arxiv.org/abs/2310.09057
Publikováno v:
J. Phys.: Condens. Matter 35 485703 (2023)
Finite size armchair graphene nanoribbons (GNR) of different families are theoretically studied using the Hubbard model in both mean-field and GW approximations, including spin correlation effects. It is shown that correlation primarily affect the pr
Externí odkaz:
http://arxiv.org/abs/2304.02910
Publikováno v:
AIP Advances 13, 075210 (2023)
The effective independent-particle (mean-field) approximation of the Hubbard Hamiltonian is described in a many-body basis to develop a formal comparison with the exact diagonalization of the full Hubbard model, using small atomic chain as test syste
Externí odkaz:
http://arxiv.org/abs/2301.03223
Publikováno v:
AIP Advances 12, 035238 (2022)
This study examines how the GW approximation, one of the techniques covered by Green's functions and on many-body approximations (GFMBA), fares compared to the treatment of the Hubbard model solved using an exact diagonalization (ED) approach. We sho
Externí odkaz:
http://arxiv.org/abs/2111.13536
Publikováno v:
In Carbon Trends September 2024 16
Publikováno v:
Carbon Trends, 4, 100073 (2021)
A computationally efficient Green's function approach is developed to evaluate the optical properties of nanostructures using a GW formalism applied on top of a tight-binding and mean-field Hubbard model. The use of the GW approximation includes key
Externí odkaz:
http://arxiv.org/abs/2012.02066
Publikováno v:
In Carbon Trends July 2021 4
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Publikováno v:
AIP Advances; Jul2023, Vol. 13 Issue 7, p1-13, 13p