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pro vyhledávání: '"Capone M."'
Time reversal symmetric topological insulators are generically robust with respect to weak local interaction, unless symmetry breaking transitions take place. Using dynamical mean-field theory we solve an interacting model of quantum spin Hall insula
Externí odkaz:
http://arxiv.org/abs/2212.05878
We study the interplay between electron-electron interaction and a Jahn-Teller phonon coupling in a two-orbital Hubbard model. We demonstrate that the e-ph interaction coexists with the Mott localization driven by the Hubbard repulsion U, but it comp
Externí odkaz:
http://arxiv.org/abs/2111.14663
Publikováno v:
Computer Physics Communications, Volume 273, 2022, 108261
We present EDIpack, an exact diagonalization package to solve generic quantum impurity problems. The algorithm includes a generalization of the look-up method introduced in [Lin, Gubernatis Comput. Phys., 7 (4) (1993), 400] and enables a massively pa
Externí odkaz:
http://arxiv.org/abs/2105.06806
Akademický článek
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Publikováno v:
Phys. Rev. Research 2, 012023 (2020)
Weyl semimetals (WSMs) are characterized by topologically stable pairs of nodal points in the band structure, that typically originate from splitting a degenerate Dirac point by breaking symmetries such as time reversal or inversion symmetry. Within
Externí odkaz:
http://arxiv.org/abs/1904.11836
Publikováno v:
In Energy 1 January 2023 262 Part B
Publikováno v:
Phys. Rev. B 98, 235137 (2018)
We present a tight-binding calculation of a twisted bilayer graphene at magic angle $\theta\sim 1.08^\circ$, allowing for full, in- and out-of-plane, relaxation of the atomic positions. The resulting band structure displays as usual four narrow mini
Externí odkaz:
http://arxiv.org/abs/1809.11140
Publikováno v:
Phys. Rev. B 98, 045133 (2018)
We investigate the emergence of anti-ferromagnetic ordering and its effect on the helical edge states in a quantum spin Hall insulator, in the presence of strong Coulomb interaction. Using dynamical mean-field theory, we show that the breakdown of la
Externí odkaz:
http://arxiv.org/abs/1805.03999
Publikováno v:
In Computer Physics Communications April 2022 273
Autor:
Perucchi, A., Di Pietro, P., Lupi, S., Sopracase, R., Tebano, A., Giovannetti, G., Petocchi, F., Capone, M., Di Castro, D.
Publikováno v:
Phys. Rev. B 97, 045114 (2018)
We perform infrared conductivity measurements on a series of CaCuO$_2$/SrTiO$_3$ heterostructures made by the insulating cuprate CaCuO$_2$ (CCO) and the insulating perovkite SrTiO$_3$ (STO). We estimate the carrier density of various heterostructures
Externí odkaz:
http://arxiv.org/abs/1708.00390