60 citations · 116 across the 11 of their papers we have counts for
11 papers
Anomalous spin textures in a 2D topological superconductor induced by point impurities
Dunkan Martínez, Álvaro Díaz-Fernández, Pedro A Orellana +1
Topological superconductors are foreseen as good candidates for the search of Majorana zero modes, where they appear as edge states and can be used for quantum computation. In this…
Multiobjective variational quantum optimization for constrained problems: an application to Cash Management
Pablo Díez-Valle, Jorge Luis-Hita, Senaida Hernández-Santana +6
Combinatorial optimization problems are ubiquitous in industry. In addition to finding a solution with minimum cost, problems of high relevance involve a number of constraints that…
Tailoring topological states of core-shell nanoparticles
Carolina Martínez-Strasser, Yuriko Baba, Álvaro Díaz-Fernández +1
In this work we investigate novel spherical core-shell nanoparticles with band inversion. The core and the embedding medium are normal semiconductors while the shell material is as…
Electron scattering by magnetic impurity in Weyl semimetals
A. Díaz-Fernández, F. Domínguez-Adame, O. de Abril
Weyl semimetals are prominent examples of topologically protected quantum matter. These materials are the three-dimensional counterparts of graphene and great efforts are being dev…
Inducing anisotropies in Dirac fermions by periodic driving
A. Diaz-Fernandez
We consider the three-dimensional Hamiltonian for BiSe, a second-generation topological insulator, under the effect of a periodic drive for both in-plane and out-of-plane f…
Electric field manipulation of surface states in topological semimetals
Yuriko Baba, Álvaro Díaz-Fernández, Elena Díaz +2
We investigate the consequences of applying electric fields perpendicularly to thin films of topological semimetals. In particular, we consider Weyl and Dirac semimetals in a confi…
Floquet engineering of Dirac cones on the surface of a topological insulator
A. Diaz-Fernandez, E. Diaz, Álvaro Gómez-León +2
We propose to Floquet-engineer Dirac cones at the surface of a three-dimensional topological insulator. We show that a large tunability of the Fermi velocity can be achieved as a f…
Topologically protected states in -doped junctions with band inversion
A. Diaz-Fernandez, N. del Valle, E. Diaz +1
A topological boundary can be formed at the interface between a trivial and a topological insulator. The difference in the topological index across the junction leads to robust gap…
Robust midgap states in band-inverted junctions under electric and magnetic fields
A. Diaz-Fernandez, N. del Valle, F. Dominguez-Adame
Several IV-VI semiconductor compounds made of heavy atoms, such as PbSnTe, may undergo band-inversion at the point of the Brillouin zone upon variation of their c…
Quantum-confined Stark effect in band-inverted junctions
A. Diaz-Fernandez, F. Dominguez-Adame
Topological phases of matter are often characterized by interface states, which were already known to occur at the boundary of a band-inverted junction in semiconductor heterostruc…
Tuning the Fermi velocity in Dirac materials with an electric field
A. Diaz-Fernandez, L. Chico, J. W. Gonzalez +1
Dirac materials are characterized by energy-momentum relations that resemble those of relativistic massless particles. Commonly denominated Dirac cones, these dispersion relations…