Artículo
Geometry-assisted topological transitions in spin interferometry
Autor/es | Wang, M.
Saarikoski, Henri Reynoso, Andrés Alejandro Baltanás, José P. Frustaglia, Diego César Nitta, J. |
Departamento | Universidad de Sevilla. Departamento de Física Aplicada II |
Fecha de publicación | 2019 |
Fecha de depósito | 2023-06-07 |
Publicado en |
|
Resumen | We identify a series of topological transitions occurring in electronic spin transport when manipulating spin-guiding fields controlled by the geometric shape of mesoscopic interferometers. They manifest as distinct ... We identify a series of topological transitions occurring in electronic spin transport when manipulating spin-guiding fields controlled by the geometric shape of mesoscopic interferometers. They manifest as distinct inversions of the interference pattern in quantum conductance experiments. We establish that Rashba square loops develop weak-(anti)localization transitions (absent in other geometries as Rashba ring loops) as an in-plane Zeeman field is applied. These transitions, boosted by nonadiabatic spin scattering, prove to have a topological interpretation in terms of winding numbers characterizing the structure of spin modes in the Bloch sphere. |
Agencias financiadoras | Japan Society for the Promotion of Science Ministerio de Economia, Industria y Competitividad (MINECO). España European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER) |
Identificador del proyecto | 15H05699
17K05510 JP15K21717 FIS2014- 53385-P FIS2017-86478-P 754340(EU/H2020) |
Cita | Wang, M., Saarikoski, H., Reynoso, A.A., Baltanás, J.P., Frustaglia, D.C. y Nitta, J. (2019). Geometry-assisted topological transitions in spin interferometry. Physical Review Letters, 123 (266804). https://doi.org/10.1103/PhysRevLett.123.266804. |
Ficheros | Tamaño | Formato | Ver | Descripción |
---|---|---|---|---|
Geometry-assisted topological ... | 2.487Mb | [PDF] | Ver/ | |