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  • ALVES, Daniel da Cruz; http://lattes.cnpq.br/5359935077469239 (Universidade Federal de ItajubáBrasilIFQ - Instituto de Física e QuímicaPrograma de Pós-Graduação: Mestrado - FísicaUNIFEI, 2020-03-13)
    In this work, a study of the photoconductivity effect was carried out on two PbTe single quantum well samples, p-type, 10 and 20 nm grown on a BaF2 substrate. Photoconduction measurements were carried out in a temperature ...
  • LOPES, Gabriel Ribeiro Ferreira; http://lattes.cnpq.br/8307342410082754 (Universidade Federal de ItajubáBrasilIFQ - Instituto de Física e QuímicaPrograma de Pós-Graduação: Mestrado - FísicaUNIFEI, 2021-12-13)
    In this work, we study the photoconductivity effect in p-type IV-VI semiconductors SnTe/P b0,9Eu0,1T e. The samples were grown using molecular beam epitaxy, resulting in high quality 30 nm-wide structures. Photoconductivity ...
  • CRUZ, Thales Willian; http://lattes.cnpq.br/3267862705740438 (Universidade Federal de ItajubáBrasilIFQ - Instituto de Física e QuímicaPrograma de Pós-Graduação: Mestrado - FísicaUNIFEI, 2024-03-08)
    This work aims at studying analogous models for the propagation of light in nonlinear theories of electromagnetism. To do this, we first calculate the equations of motion and the momentum-energy tensor of an arbitrary ...
  • FERNANDES FILHO, Ricardo Alexandre; http://lattes.cnpq.br/5218561645780587 (Universidade Federal de ItajubáBrasilIFQ - Instituto de Física e QuímicaPrograma de Pós-Graduação: Mestrado - FísicaUNIFEI, 2024-02-26)
    In this thesis, a qualitative analysis is proposed on how theories related to gravity have changed over time until reaching the well-known modified theories of gravitation, demonstrating the power they hold. The aim is ...
  • SILVA, Diego Renan da; http://lattes.cnpq.br/6784648251420597 (Universidade Federal de ItajubáBrasilIFQ - Instituto de Física e QuímicaPrograma de Pós-Graduação: Mestrado - FísicaUNIFEI, 2020-07-30)
  • COSTA, Isabela Franco; http://lattes.cnpq.br/5946842583369390 (Universidade Federal de ItajubáBrasilIFQ - Instituto de Física e QuímicaPrograma de Pós-Graduação: Mestrado - FísicaUNIFEI, 2022-04-05)
    Não consta
  • VILLANUEVA, JacKelyne Lisset Medina (Universidade Federal de ItajubáBrasilIFQ - Instituto de Física e QuímicaPrograma de Pós-Graduação: Mestrado - FísicaUNIFEI, 2022-12-16)
    The aim of this study was to investigate the influence of the etch-stop time on the structural and optical properties of multilayer structures and their passivation to avoid aging effects. Structural analysis by scanning ...
  • PAULA, João Paulo Almeida de; http://lattes.cnpq.br/7247553962111836 (Universidade Federal de ItajubáBrasilIFQ - Instituto de Física e QuímicaPrograma de Pós-Graduação: Mestrado - FísicaUNIFEI, 2024-02-28)
    In this work, we will calculate the Feynman propagator of a scalar field with mass M at finite temperature T in the Einstein universe, which is a static space-time. The field will be arbitrarily coupled to the curvature ...
  • SILVA, Adalberto Rafael da Cunha; http://lattes.cnpq.br/2238132138637669 (Universidade Federal de ItajubáBrasilIFQ - Instituto de Física e QuímicaPrograma de Pós-Graduação: Mestrado - FísicaUNIFEI, 2023-06-16)
    Planetary nebulae have been used extensively to study the chemical evolution of the Milky Way. They are originated by stars of medium and low mass (0.8 M⊙ to 8 M⊙) that have their outermost layers ejected, and the ejected ...
  • SALVADOR, Victor Manuel Neyra; http://lattes.cnpq.br/3830097015558224 (Universidade Federal de ItajubáBrasilIFQ - Instituto de Física e QuímicaPrograma de Pós-Graduação: Mestrado - FísicaUNIFEI, 2024-02-29)
    The locality principle is respected by the special and general theory of relativity. Consequently, the speed of light is the maximum speed at which information can travel. However, by the Hubble-Lemaitre law, we know ...