23 citations · 188 across the 39 of their papers we have counts for
42 papers
Axion insulators protected by C2T and their K-theory invariants and material realization
Rafael Gonzalez-Hernandez, Carlos Pinilla, Bernardo Uribe
Axion insulators are generally understood as magnetic topological insulators whose Chern-Simons axion coupling term is quantized and equal to . Inversion and time reversal, or t…
On quasi-nodal spheres and the spin Hall effect: the case of YH3 and CaTe
Rafael Gonzalez-Hernandez, Carlos Pinilla, Bernardo Uribe
Band inversion is a known feature in a wide range of topological insulators characterized by a change of orbital type around a high-symmetry point close to the Fermi level. In some…
Oriented and unitary equivariant bordism of surfaces
Andrés Angel, Eric Samperton, Carlos Segovia +1
Fix a finite group . We study and , the unitary and oriented bordism groups of smooth -equivariant compact surfaces, respectively, and we calculate th…
Quasi-nodal lines in rhombohedral magnetic materials
Rafael González-Hernández, Erick Tuirán, Bernardo Uribe
A well-established result in condensed matter physics states that materials crystallizing in symmetry groups containing glide reflection symmetries possess nodal lines on the energ…
Chiralities of nodal points along high symmetry lines with screw rotation symmetry
Rafael González-Hernández, Erick Tuiran, Bernardo Uribe
Screw rotations in nonsymmorphic space group symmetries induce the presence of hourglass and accordion shape band structures along screw invariant lines whenever spin-orbit couplin…
Pontrjagin duality on multiplicative Gerbes
Jaider Blanco, Bernardo Uribe, Konrad Waldorf
We use Segal-Mitchison's cohomology of topological groups to define a convenient model for topological gerbes. We introduce multiplicative gerbes over topological groups in this se…