The activity in my group over the past few years spans several research topics that range from the theoretical study of (spin-related) transport phenomena [1,2] to, more recently, linear and non-linear optical responses [3,4] mostly of two-dimensional crystals. In this talk, after a brief overview of this activity, I will focus my discussion on two quite different problems: First, the so-called chirality induced spin selectivity in molecular junctions [5] and second, the photogalvanic bulk effect in non-centrosymmetric crystals. On a qualitative level, the use of group theory turns out key to our understanding of the response of materials to external stimuli. When combined with atomistic simulations and contrasted with experiments, a comprehensive picture of the physical phenomena just mentioned seems to emerge.
[1] Few-layer antimonene electrical properties, P Ares et al., Applied Materials Today 24, 101132 (2021).
[2] Charge-spin interconversion in graphene-based systems from density functional theory, M Rassekh, et al. Physical Review B 104 (23), 235429 (2021).
[3] A comprehensive study of the velocity, momentum and position matrix elements for Bloch states using a local orbital basis, JJ Esteve-Paredes and JJ Palacios, arXiv preprint arXiv:2201.12290, scipost_202208_00050v2.
[4] A theoretical approach for electron dynamics and ultrafast spectroscopy, G Cistaro et al., arXiv preprint arXiv:2207.00249.
[5] A group-theoretic approach to the origin of chirality-induced spin selectivity in non-magnetic molecular junctions, W Dednam et al., arXiv preprint arXiv:2211.04830.
Presencial
(Sala de Seminarios del Departamento C03 planta 5)
Online Ms-Teams
(Seminarios del Departamento FMC)
Universidad Autónoma de Madrid © 2008 · Ciudad Universitaria de Cantoblanco · 28049 Madrid · Información y Conserjería: 91 497 43 31 E-mail: informacion.ciencias@uam.es Gestión de estudiantes de Grado y Posgrado: 91 497 8264 / 4329 / 4353 / 4349 / 6879 / 8362 E-mail: administracion.ciencias@uam.es
