2026-06-30T04:09:08Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/91842024-05-27T07:09:17Zcom_10259.4_2527com_10259_5086com_10259_2604col_10259.4_2528
Repositorio Institucional de la Universidad de Burgos
author
Mayorgas, Alberto
author
Calixto, Manuel
author
Cordero Tejedor, Nicolás A.
author
Romera, Elvira
author
Castaños Garza, Octavio Héctor
2024-05-25T15:15:55Z
2024-05-25T15:15:55Z
2024-05-13
2666-9366
http://hdl.handle.net/10259/9184
10.21468/SciPostPhysCore.7.2.029
2666-9366
The time evolution of a wave packet is a tool to detect topological phase transitions in two-dimensional Dirac materials, such as graphene and silicene. Here we extend the analysis to HgTe/CdTe quantum wells and study the evolution of their electron current wave packet, using 2D effective Dirac Hamiltonians and different layer thicknesses. We show that the two different periodicities that appear in this temporal evolution reach a minimum near the critical thickness, where the system goes from normal to inverted regime. Moreover, the maximum of the electron current amplitude changes with the layer thickness, identifying that current maxima reach their higher value at the critical thickness. Thus, we can characterize the topological phase transitions in terms of the periodicity and amplitude of the electron currents.
eng
Atribución 4.0 Internacional
Quantum revivals in HgTe/CdTe quantum wells and topological phase transitions
info:eu-repo/semantics/article
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URL
https://riubu.ubu.es/bitstream/10259/9184/1/Mayorgas-spc_2024.pdf
File
MD5
17ef99e07b5ee55e943d076dbc9941ac
853464
application/pdf
Mayorgas-spc_2024.pdf