270 citations · 2.1k across the 40 of their papers we have counts for
5 papers · 1 filter
Magnetic description of the Fermi arc in type-I and type-II Weyl semimetals
Serguei Tchoumakov, Marcello Civelli, Mark O. Goerbig
We consider finite-sized interfaces of a Weyl semi-metal and show that the corresponding confinement potential is similar to the application of a magnetic field. Among the numerous…
Resolving the VO controversy: Mott mechanism dominates the insulator-to-metal transition
Óscar Nájera, Marcello Civelli, Vladimir Dobrosavljević +1
We consider a minimal model to investigate the metal-insulator transition in VO. We adopt a Hubbard model with two orbital per unit cell, which captures the competition between…
Hidden-Fermion Representation of Self-energy in Pseudogap and Superconducting States of Two-Dimensional Hubbard Model
Shiro Sakai, Marcello Civelli, Masatoshi Imada
We study the frequency-dependent structure of electronic self-energy in the pseudogap and superconducting states of the two-dimensional Hubbard model. We present the self-energy ca…
Magnetic-field-induced relativistic properties in type-I and type-II Weyl semimetals
Serguei Tchoumakov, Marcello Civelli, Mark O. Goerbig
We investigate Weyl semimetals with tilted conical bands in a magnetic field. Even when the cones are overtilted (type-II Weyl semimetal), Landau-level quantization can be possible…
Unconventional high-energy-state contribution to the Cooper pairing in under-doped copper-oxide superconductor HgBaCaCuO
B. Loret, S. Sakai, Y. Gallais +6
We study the temperature-dependent electronic B1g Raman response of a slightly under-doped single crystal HgBaCaCuO with a superconducting critical temperature…