Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Luca de' Medici"'
Autor:
Gautam Rai, Lorenzo Crippa, Dumitru Călugăru, Haoyu Hu, Francesca Paoletti, Luca de’ Medici, Antoine Georges, B. Andrei Bernevig, Roser Valentí, Giorgio Sangiovanni, Tim Wehling
Publikováno v:
Physical Review X, Vol 14, Iss 3, p 031045 (2024)
The interplay of dynamical correlations and electronic ordering is pivotal in shaping phase diagrams of correlated quantum materials. In magic-angle twisted bilayer graphene, transport, thermodynamic, and spectroscopic experiments pinpoint a competit
Externí odkaz:
https://doaj.org/article/05b5afc100f0460cb742f642498b4058
We introduce the generalization of the Slave-Spin Mean-Field method to broken-symmetry phases. Through a variational approach we derive the single-particle energy shift in the mean-field equations which generates the appropriate self-consistent field
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd9c705c779eb19c5519013ca971da27
Autor:
Maria Chatzieleftheriou, Alexander Kowalski, Maja Berović, Adriano Amaricci, Massimo Capone, Lorenzo De Leo, Giorgio Sangiovanni, Luca de’ Medici
Publikováno v:
Physical Review Letters
Strongly correlated materials often undergo a Mott metal-insulator transition, which is tipically first-order, as a function of control parameters like pressure. Upon doping, rich phase diagrams with competing instabilities are found. Yet, the concep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54cc512f2ac90fd387eabfe918f407cc
http://arxiv.org/abs/2203.02451
http://arxiv.org/abs/2203.02451
Autor:
Yingzheng Gao, Sergio Vlaic, Tommaso Gorni, Luca de’ Medici, Sylvain Clair, Dimitri Roditchev, Stéphane Pons
Publikováno v:
ACS Nano
ACS Nano, 2023, 17 (10), pp.9082-9089. ⟨10.1021/acsnano.2c12223⟩
ACS Nano, 2023, 17 (10), pp.9082-9089. ⟨10.1021/acsnano.2c12223⟩
By moving individual Fe-Porphyrin-based molecules with the tip of Scanning Tunneling Microscope in the vicinity of a Br-atom containing elbow of the herringbone-reconstructed Au(111), we reversibly and continuously control their magnetic state. Sever
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::924cbf917b0fc92e7ec2c0fbe68f9fef
We compute the electronic properties of the normal state of uncollapsed LaFe$_2$As$_2$, taking into account local dynamical correlations by means of slave-spin mean-field+density-functional theory. Assuming the same local interaction strength used to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d1181fc95154201c7781c2b2c64751c
Autor:
Pablo Villar Arribi, Luca de' Medici
We study LiFeP, LiFeAs and NaFeAs in their paramagnetic metallic phase including dynamical electronic correlations within a density functional theory + slave-spin mean-field framework. The three compounds are found to lie next to the crossover betwee
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3daf3c4c4211886d19ada2a091c0c0d5
http://arxiv.org/abs/2104.11018
http://arxiv.org/abs/2104.11018
Publikováno v:
Physical Review B
Physical Review B, American Physical Society, 2021, 104 (1), ⟨10.1103/PhysRevB.104.014507⟩
Physical Review B, 2021, 104 (1), ⟨10.1103/PhysRevB.104.014507⟩
Physical Review B, American Physical Society, 2021, 104 (1), ⟨10.1103/PhysRevB.104.014507⟩
Physical Review B, 2021, 104 (1), ⟨10.1103/PhysRevB.104.014507⟩
We reproduce the electronic properties of FeSe in the high-temperature phase within an ab initio framework that includes screened Fock exchange and local dynamical correlations. We robustly capture the experimental band structure, as long as the syst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ef9b9d98ec871c73b5dd552a594f768
Autor:
Ricardo P. S. M. Lobo, J. Wyzula, D. Santos-Cottin, Michele Casula, Luca de' Medici, Yannick Klein, Ana Akrap, Andrea Gauzzi, Milan Orlita, F. Le Mardelé
We investigate the optical conductivity and far-infrared magneto-optical response of BaNiS$_2$, a simple square-lattice semimetal characterized by Dirac nodal lines that disperse exclusively along the out-of-plane direction. With the magnetic field a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31f4103c0067ebeb326a86ff42406620
https://doi.org/10.48550/arxiv.2104.05521
https://doi.org/10.48550/arxiv.2104.05521
Publikováno v:
Physical Review B 102 (2020). doi:10.1103/PhysRevB.102.205127
info:cnr-pdr/source/autori:Chatzieleftheriou M.; Berovic M.; Villar Arribi P.; Capone M.; De'Medici L./titolo:Enhancement of charge instabilities in Hund's metals by breaking of rotational symmetry/doi:10.1103%2FPhysRevB.102.205127/rivista:Physical Review B/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume:102
info:cnr-pdr/source/autori:Chatzieleftheriou M.; Berovic M.; Villar Arribi P.; Capone M.; De'Medici L./titolo:Enhancement of charge instabilities in Hund's metals by breaking of rotational symmetry/doi:10.1103%2FPhysRevB.102.205127/rivista:Physical Review B/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume:102
We analyze multi-orbital Hubbard models describing Hund's metals, focusing on the ubiquitous occurrence of a charge instability, signalled by a divergent/negative electronic compressibility, in a range of doping from the half-filled Mott insulator co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::10778aff1d0c156f3c78cf7c285de8ea
Publikováno v:
Physical Review B
We study the doping-driven Mott metal-insulator transition for multiorbital Hubbard models with Hund's exchange coupling at finite temperatures. As in the single-orbital Hubbard model, the transition is first order within dynamical mean-field theory,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00789fc02b6af10c1416910b547ad13f