| dc.creator | Tomé, Martín | |
| dc.creator | Rosales, Héctor Diego | |
| dc.date | 2021-01-06 | |
| dc.date | 2021-10-15T16:33:40Z | |
| dc.date.accessioned | 2023-07-15T03:16:20Z | |
| dc.date.available | 2023-07-15T03:16:20Z | |
| dc.identifier | http://sedici.unlp.edu.ar/handle/10915/126739 | |
| dc.identifier | issn:2469-9950 | |
| dc.identifier | issn:2469-9969 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/7465080 | |
| dc.description | The topological Hall effect (THE), given by a composite of electric and topologically nontrivial spin texture is commonly observed in magnetic skyrmion crystals. Here we present a study of the THE of electrons coupled to antiferromagnetic skyrmion lattices (AF-SkX). We show that, in the strong Hund coupling limit, topologically nontrivial phases emerge at specific fillings. Interestingly, at low filling an external field controlling the magnetic texture drives the system from a conventional insulator phase to a phase exhibiting the THE. Such behavior suggests the occurrence of a topological transition which is confirmed by a closing of the bulk gap that is followed by its reopening, appearing simultaneously with a single pair of helical edge states. This transition is further verified by the calculation of the Chern numbers and Berry curvature. We also compute a variety of observables in order to quantify the THE, namely, Hall conductivity and the orbital magnetization of electrons moving in the AF-SkX texture. | |
| dc.description | Instituto de Física de Líquidos y Sistemas Biológicos | |
| dc.format | application/pdf | |
| dc.language | en | |
| dc.rights | http://creativecommons.org/licenses/by-nc-sa/4.0/ | |
| dc.rights | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | |
| dc.subject | Física | |
| dc.subject | Magnetic field | |
| dc.subject | Physics | |
| dc.subject | Topology | |
| dc.subject | Hall effect | |
| dc.subject | Orbital magnetization | |
| dc.subject | Berry connection and curvature | |
| dc.subject | Magnetic skyrmion | |
| dc.subject | Texture (cosmology) | |
| dc.subject | Topological order | |
| dc.subject | Skyrmion | |
| dc.title | Topological phase transition driven by magnetic field and topological Hall effect in an antiferromagnetic skyrmion lattice | |
| dc.type | Articulo | |
| dc.type | Preprint | |
