Zobrazeno 1 - 10
of 106
pro vyhledávání: '"Vozmediano, Maria A. H"'
Autor:
Silva, Joao S., Castro, Eduardo V., Mondaini, Rubem, Vozmediano, María A. H., López-Sancho, M. Pilar
Publikováno v:
Phys. Rev. B 109, 125145 (2024)
We analyze the influence of disorder and strong correlations on the topology in two dimensional Chern insulators. A mean field calculation in the half-filled Haldane model with extended Hubbard interactions and Anderson disorder shows that disorder f
Externí odkaz:
http://arxiv.org/abs/2307.16053
Publikováno v:
Phys. Rev. B 107, 014410 (2023)
We analyze the effect of the tilt on the transverse thermoelectric coefficient of Weyl semimetals in the \emph{conformal} limit, i.e., zero temperature and zero chemical potential. Using the Kubo formalism, we find a nonmonotonic behavior of the ther
Externí odkaz:
http://arxiv.org/abs/2209.14331
Publikováno v:
Phys. Rev. B 106, 075125 (2022)
The collapse of Landau levels under an electric field perpendicular to the magnetic field is one of the distinctive features of Dirac materials. So is the coupling of lattice deformations to the electronic degrees of freedom in the form of gauge fiel
Externí odkaz:
http://arxiv.org/abs/2208.08632
Autor:
Chernodub, Maxim N., Ferreiros, Yago, Grushin, Adolfo G., Landsteiner, Karl, Vozmediano, María A. H.
Publikováno v:
Phys.Rept. 977 (2022) 1-58
The relation between thermal transport and gravity was highlighted in the seminal work by Luttinger in 1964, and has been extensively developed to understand thermal transport, most notably the thermal Hall effect. Here we review the novel concepts t
Externí odkaz:
http://arxiv.org/abs/2110.05471
Publikováno v:
SciPost Phys. Core 3, 013 (2020)
Torsional strain in Weyl semimetals excites a unidirectional chiral density wave propagating in the direction of the torsional vector. This gapless excitation, named the chiral sound wave, is generated by a particular realization of the axial anomaly
Externí odkaz:
http://arxiv.org/abs/2004.02473
Publikováno v:
Phys. Rev. Research 1, 032040 (2019)
We show that a strained wire of a Weyl semimetal supports a new type of gapless excitation, the chiral sound wave (CSW). It is a longitudinal charge density wave analog to the chiral magnetic wave predicted in the quark-gluon plasma but driven by an
Externí odkaz:
http://arxiv.org/abs/1904.09113
Publikováno v:
Phys. Rev. Research 1, 033129 (2019)
We analyze the localization properties of two dimensional systems based on partite lattices with a basis. Contrary to standard results, we find that a band of critical states emerges for systems in the unitary class A preserving spin symmetry when di
Externí odkaz:
http://arxiv.org/abs/1904.04342
Publikováno v:
Symmetry 12, 814 (2020)
In the Fermi liquid description of metals, electrical and thermoelectric transport coefficients are linked by robust relations which can be challenged by strong interactions or when the electron liquid enters a different regime. These relations have
Externí odkaz:
http://arxiv.org/abs/1903.00019
Publikováno v:
Phys. Rev. B 99, 235123 (2019)
In a recent work, a contribution to the Nernst current of a Dirac or Weyl semimetal coming from the conformal anomaly was reported. Being originated from an anomaly - a vacuum contribution -, a non-zero transport coefficient was predicted at zero tem
Externí odkaz:
http://arxiv.org/abs/1902.02358
Publikováno v:
Phys. Rev. B 98, 115122 (2018)
The effective low energy description of interacting Dirac and Weyl semimetals is that of massless quantum electrodynamics with several Lorentz breaking material parameters. We perform a renormalization group analysis of Coulomb interaction in anisotr
Externí odkaz:
http://arxiv.org/abs/1802.02632