RT Dissertation/Thesis
T1 Topological Insulators: Advances in Thermoelectricity, Orbital Dynamics and Axion Electrodynamics
A1 Faílde Balea, Daniel
K1 Topological phases of matter
K1 topological insulators
K1 thermoelectricity
K1 Berry curvature
K1 orbital dynamics
K1 axion electrodynamics
AB Topological materials (TMs) are a special class of quantum materials whichinclude Topological Insulators (TIs), Chern Insulators (CIs), Weyl Semimetals, Topological Superconductors andMagnetic Topological Insulators (MTIs). Their non-trivial topology, which differs from the trivial one of conventionalsystems, give these systems singular thermoelectric and magnetoelectric transport properties. These propertiesare not only rich from the physical point of view but they can be technologically beneficial for different applicationsbeing used such as thermoelectrics, transistors, spintronic devices, superconductors, etc. The origin of this thesislies in the study of the thermoelectric properties of topological insulators, currently the best thermoelectricmaterials. Our perspective is theoretical from the beginning given the lack of a microscopic theory in the literaturewhich answers why these systems have such an efficient thermoelectric response, represented by their well knownexperimental figure of merit. This led us to explore other effects and interactions such as the electron-phononcoupling, thermal excitations, and other orbital magnetic effects and phenomena related to the axionelectrodynamics, which are a consequence of their non-trivial topology and shall be developed in this thesis. Inaddition, we give a new interpretation to the physics of these systems by introducing the concept of a topologicalintrinsic field which is derived from the Berry curvature defined in the non-trivial topological bands of thesematerials.
YR 2022
FD 2022
LK http://hdl.handle.net/10347/28132
UL http://hdl.handle.net/10347/28132
LA eng
DS Minerva
RD 27 abr 2026