22 citations · 35 across the 9 of their papers we have counts for
9 papers
Magnetic Equivariant Graded Brauer Group
Higinio Serrano, Bernardo Uribe
Given a magnetic finite group, we consider the similarity classes of magnetic equivariant central simple graded algebras over the complex numbers. We call this set the magnetic equ…
Fermi Surface Reconstruction and Anisotropic Linear Magnetoresistance in the Charge Density Wave Topological Semimetal TaTe4
D. Silvera-Vega, J. Rojas-Castillo, E. Herrera-Vasco +7
Understanding the interplay between topology and correlated electron states is central to the study of quantum materials. TaTe is a quasi-one-dimensional charge density wave (C…
Model Hamiltonian for Altermagnetic Topological Insulators
Rafael Gonzalez-Hernandez, Bernardo Uribe
We present models of topological insulating Hamiltonians exhibiting intrinsic altermagnetic features, protected by combined three-fold or four-fold rotational symmetries with time-…
Magnetic Equivariant K-theory
Higinio Serrano, Bernardo Uribe, Miguel A. Xicoténcatl
We present the fundamental properties of the K-theory groups of complex vector bundles endowed with actions of magnetic groups. In this work we show that the magnetic equivariant K…
Rational magnetic equivariant K-theory
Higinio Serrano, Bernardo Uribe, Miguel A. Xicoténcatl
We introduce the magnetic equivariant K-theory groups as the K-theory groups associated to magnetic groups and their respective magnetic equivariant complex bundles. We restrict th…
Spin Chern number in altermagnets
Rafael Gonzalez-Hernandez, Higinio Serrano, Bernardo Uribe
This work explores the topological properties of altermagnets, a novel class of collinear magnetic materials. We employ equivariant K-theory of magnetic groups and Hamiltonian mode…
Topological Spherical T-duality -- Dimension change from higher degree -flux
Gil R. Cavalcanti, Bart Heemskerk, Bernardo Uribe
Topological Spherical T-duality was introduced by Bouwknegt, Evslin and Mathai in [BEM15] as an extension of topological T-duality from -bundles to -bundles en…
On the average spin Chern number
Rafael Gonzalez-Hernandez, Bernardo Uribe
In this work, we propose the average spin Chern number (ASCN) as an indicator of the topological significance of the spin degree of freedom within insulating materials. Whenever th…
Spin Weyl Topological Insulators
Rafael Gonzalez-Hernandez, Bernardo Uribe
The quantum nature of electron spin is crucial for establishing topological invariants in real materials. Since the spin does not in general commute with the Hamiltonian, some of t…