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    Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10259/9184

    Título
    Quantum revivals in HgTe/CdTe quantum wells and topological phase transitions
    Autor
    Mayorgas, Alberto
    Calixto, Manuel
    Cordero Tejedor, Nicolás A.UBU authority Orcid
    Romera, Elvira
    Castaños Garza, Octavio Héctor
    Publicado en
    SciPost Physics Core. 2024, V. 7, n. 2, p. 1-18
    Editorial
    SciPost Foundation
    Fecha de publicación
    2024-05-13
    ISSN
    2666-9366
    DOI
    10.21468/SciPostPhysCore.7.2.029
    Abstract
    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.
    Materia
    Física
    Physics
    Materiales
    Materials
    URI
    http://hdl.handle.net/10259/9184
    Versión del editor
    https://scipost.org/SciPostPhysCore.7.2.029
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    Atribución 4.0 Internacional
    Documento(s) sujeto(s) a una licencia Creative Commons Atribución 4.0 Internacional
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    Mayorgas-spc_2024.pdf
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