1 citations · 4 across the 6 of their papers we have counts for
6 papers
Quantum valley pseudospin controlled by strain
Maurício F. C. Martins Quintela, Miguel Sá, Alejandro J. Uría-Álvarez +5
Valleytronics, as an alternative to traditional electronics or spintronics, is based on the encoding of quantum information in pseudospin valley quantum numbers, rather than in cha…
Amorphization-induced topological and insulator-metal transitions in bidimensional BiSb alloys
A. J. Uría-Álvarez, J. J. Palacios
Bismuth has been shown to be topological in its different allotropes and compounds, with one of the most notable examples being the Bi-Sb alloy, the first 3D topological insulator…
Excitons in nonlinear optical responses: shift current in MoS and GeS monolayers
J. J. Esteve-Paredes, M. A. García-Blázquez, A. J. Uría-Álvarez +2
It is well-known that exciton effects are determinant to understand the optical absorption spectrum of low-dimensional materials. However, the role of excitons in nonlinear optical…
Topologically protected photovoltaics in Bi nanoribbons
Alejandro José Uría-Álvarez, Juan José Palacios
Photovoltaic efficiency in solar cells is hindered by many unwanted effects. Radiative channels (emission of photons) sometimes mediated by non-radiative ones (emission of phonons)…
Efficient computation of optical excitations in two-dimensional materials with the Xatu code
Alejandro José Uría-Álvarez, Juan José Esteve-Paredes, Manuel Antonio García-Blázquez +1
Here we describe an efficient numerical implementation of the Bethe-Salpeter equation to obtain the excitonic spectrum of semiconductors. This is done on the electronic structure c…
Deep learning for disordered topological insulators through entanglement spectrum
Alejandro José Uría-Álvarez, Daniel Molpeceres-Mingo, Juan José Palacios
Calculation of topological invariants for crystalline systems is well understood in reciprocal space, allowing for the topological classification of a wide spectrum of materials. I…