What is it about?
A novel mathematical model of a nonhomogeneous material is obtained in the context of the hyperbolic two-temperature theory. The governing equations of the photothermoelasticity theory are investigated with different relaxation times under the influence of the magnetic field. Comparisons are made to illustrate the impacts of the thermal memories (three models of thermoelasticity theory), magnetic field, nonhomogeneous parameters, and the hyperbolic two-temperature parameter for two-semiconductor media. The obtained results confirm the effectiveness of the thermal memories using the photothermoelasticity theory.
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Why is it important?
The obtained results confirm the effectiveness of the thermal memories using the photothermoelasticity theory. Accordingly, results have illustrated the importance of the external magnetic field, non-homogeneous parameters, and the hyperbolic two-temperature field in many industrial applications such as solar cells and modern geophysics engineering.
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This page is a summary of: Functionally graded (FG) magneto-photo-thermoelastic semiconductor material with hyperbolic two-temperature theory, Journal of Applied Physics, January 2022, American Institute of Physics, DOI: 10.1063/5.0072237.
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Thermoelastic with photogenerated model of rotating microstretch semiconductor medium under the influence of initial stress
A novel theoretical mathematical-physics model is obtained when the microstretch properties of elastic semiconductor medium are taken into account. This model is investigated in the context of photo-excitation transport processes through the thermoelasticity theory. The new model can be called Microstretch-photo-thermoelasticity (MPT) theory. The MPT model is studied under the impact of hydrostatic initial stress. The carrier’s charge field (carrier density or plasma wave) appears due to optical excitation. In this model, the interaction between thermal–mechanical-plasma waves is obtained when the medium is in a rotating case. When the medium is linear, isotropic and homogenous, the two-dimensional (2D) elastic and electronic deformations governing equations are investigated. This is done while taking into account the microinertia of the medium particles. The basic physical variables are obtained using the mathematical plane harmonic wave technique to obtain the general solutions. The complete analytical solutions are solved when conditions from mechanical-thermal and plasma type act at the free surface of the medium. The silicon (Si) and Germanium (Ge) materials are used to make the numerical simulations. The numerical results are displayed graphically and discussed.
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