Highly nonperturbative nature of the Mott metal-insulator transition: Two-particle vertex divergences in the coexistence region

Autor: Pelz, Mathias, Adler, Severino, Reitner, Matthias, Toschi, Alessandro

Publikováno v: Phys.Rev.B.108(2023)155101

We thoroughly analyze the divergences of the irreducible vertex functions occurring in the charge channel of the half-filled Hubbard model in close proximity to the Mott metal-insulator transition (MIT). In particular, by systematically performing dy

Externí odkaz: http://arxiv.org/abs/2303.01914

Local vs non-local correlation effects in interacting quantum spin Hall insulators

Autor: Crippa, Lorenzo, Amaricci, Adriano, Adler, Severino, Sangiovanni, Giorgio, Capone, Massimo

The impact of Coulomb interaction on the electronic properties of a quantum spin-Hall insulator is studied using quantum cluster methods, disentangling local from non-local effects. We identify different regimes, according to the value of the bare ma

Externí odkaz: http://arxiv.org/abs/2110.05364

Osmates on the verge of a Hund's-Mott transition: The different fates of NaOsO$_3$ and LiOsO$_3$

Autor: Springer, Daniel, Kim, Bongjae, Liu, Peitao, Khmelevskyi, Sergii, Adler, Severino, Capone, Massimo, Sangiovanni, Giorgio, Franchini, Cesare, Toschi, Alessandro

Publikováno v: Phys. Rev. Lett. 125, 166402 (2020)

We clarify the origin of the strikingly different spectroscopic properties of the chemically similar compounds NaOsO$_3$ and LiOsO$_3$. Our first-principle many-body analysis demonstrates that the highly sensitive physics of these two materials is co

Externí odkaz: http://arxiv.org/abs/1910.05151

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Osmates on the Verge of a Hund's-Mott Transition: The Different Fates of NaOsO3 and LiOsO3

Autor: Springer, Daniel, Kim, Bongjae, Liu, Peitao, Khmelevskyi, Sergii, Adler, Severino, Capone, Massimo, Sangiovanni, Giorgio, Franchini, Cesare, Toschi, Alessandro

Publikováno v: Physical review letters
125 (2020). doi:10.1103/PhysRevLett.125.166402
info:cnr-pdr/source/autori:Springer D.; Kim B.; Liu P.; Khmelevskyi S.; Adler S.; Capone M.; Sangiovanni G.; Franchini C.; Toschi A./titolo:Osmates on the Verge of a Hund's-Mott Transition: The Different Fates of NaOsO3 and LiOsO3/doi:10.1103%2FPhysRevLett.125.166402/rivista:Physical review letters (Print)/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume:125

We clarify the origin of the strikingly different spectroscopic properties of the chemically similar compounds NaOsO_{3} and LiOsO_{3}. Our first-principle, many-body analysis demonstrates that the highly sensitive physics of these two materials is c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0290c19da9d3de169675cdeb3fe8b558
http://hdl.handle.net/11585/804777