Quantum kinetic equation

The result indicates that in the case of electron-acoustic phonon scattering, the Shubnikov-de Hass oscillation appears. Whereas, in the case of electrons-optical phonons scattering, the peak of magneto-photonphonon resonance appears. In both cases, when temperature increases, the Nernst coefficient decreases rapidly, and for electrons-optical phonons scattering, the resonance peak has a movement.

10p viambani 18-06-2024 1 1   Download

Based on the quantum kinetic equation for electrons, we theoretically studied the Quantum Multi-photon Nonlinear Absorption of a Strong Electromagnetic Wave (EMW) in twodimensional graphene with electron-optical phonon scattering mechanism.

9p viambani 18-06-2024 3 1   Download

Ebook "Jacobi dynamics: A unified theory with applications to geophysics, celestial mechanics, astrophysics and cosmology" summarized as follows: the kinetic energy of oscillation of the interacting particles which explains the physical meaning and nature of the gravitation forces; separation of the shell’s rotation of a self-gravitating body with respect to the mass density; difference in angular velocities of the shell rotation;...

345p nhanphanguyet 28-01-2024 4 2   Download

Based on the quantum kinetic equation method, the Hall effect in doped semiconductor superlattices (DSSL) has been theoretically studied under the influence of confined LO-phonons and the laser radiation.

5p viberbers 09-08-2023 9 3   Download

We applied the quantum kinetic equation method to investigate the influence of confined optical phonons (confined OP) on the photo-stimulated Ettingshausen effect in rectangular quantum wires (RQW) subjected to a perpendicular magnetic field. We considered the case where the confined electrons-confined OP scattering is the dominant mechanism.

7p viberkshire 09-08-2023 5 3   Download

Based on the kinetic equation method, the quantum Peltier effect has been theoretically studied under the influence of confined optical phonons in a rectangular quantum wire (RQW) of infinite high potential when placed in perpendicular electric and magnetic fields.

7p viberkshire 09-08-2023 7 5   Download

Theoretical results for the AME field is numerically evaluated, plotted and discussed for the specific CQWIP AlGaAs/GaAs. The result shows that the dependence of the AME field on the temperature of the system is nonlinear. These results are compared with those of normal bulk semiconductors and quantum well to show the difference.

3p vispyker 16-11-2022 8 3   Download

The nonlinear acoustoelectric (NAE) current in a doping superlattice (DSL) is investigated for an acoustic wave in the region ql>>1 (where q is the acoustic wave number) in the presence of an electromagnetic wave.

4p vilexus 30-09-2022 7 2   Download

When an acoustic wave is absorbed by a conductor, the transfer of the momentum from the acoustic wave to the conduction electron may give rise to a current usually called the AE current. In this paper, we examine the calculated AE current in the QW in case the electron relaxation time is not dependent on the energy.

4p vikoenigsegg 29-09-2022 8 3   Download

The results in this case are compared with the case of the bulk semiconductors show the difference and the novelty of the results. The results numerically calculated for GaAs/AlGaAs in order to show the dependence of absorption coefficient on the photon energy of the temperature, the size of the asymmetric semi-parabolic quantum wells.

8p viindranooyi 07-05-2022 9 2   Download

Quantum theory of nonlinear absorption of strong electromagnetic wave (EMW) by confined electrons in two - dimensional (2D) graphene without magnetic field has been studied by using the quantum kinetic equation in assumption of electron - optical phonon scattering. The analytic expression of absorption coefficient is obtained in 2D graphene.

9p viindranooyi 07-05-2022 11 2   Download

By using quantum kinetic equation method Abstract the analytic expression of the magnetoresistance in doped superlattice under the influence of Electromagnetic wave is obtained. The magnetoresistance depends on some parameters, including the frequency of the Electromagnetic wave.

5p vijichoo2711 04-06-2021 16 1   Download

Based on the quantum kinetic equation for electrons under the action of a linearly polarized electromagnetic wave, a dc electric field and an intense laser field, analytic expressions for the density of the direct current in rectangular quantum wire with an infinite potential for the case of electron - acoustic phonon scattering are calculated.

8p vijichoo2711 04-06-2021 16 1   Download

The analytic expressions for the absorption coefficient (ACF) of a weak electromagnetic wave (EMW) caused by confined electrons in the presence of laser radiation modulated by amplitude in doped superlattices (DSL) are obtained by using the quantum kinetic equation for electrons in the case of electron–optical phonon scattering.

11p tamynhan8 04-11-2020 15 2   Download

This problem was also studied in the presence of both low frequency and high frequency EMW [5]. Moreover, in these works, the dependence of magnetoresistance as well as magnetoconductivity on the relative angle of applied fields has been considered carefully. The behaviors of this effect are much more interesting in low-dimensional systems, especially a two-dimensional electron gas (2DEG) system.

13p tamynhan8 04-11-2020 11 1   Download

The acoustomagnetoelectric (AME) field in a quantum well with an infinity potential (QWIP) has been studied in the presence of an external magnetic field. The analytic expression for the AME field in the QWIP was obtained by using the quantum kinetic equation for the distribution function of electrons interacting with the acoustic wave.

4p vitexas2711 05-11-2020 10 2   Download

The study results were numerically evaluated and graphed for GaAs/GaAsAl quantum wire. Then, the results in this case were compared with those in the case of the bulk semiconductors and other lowdimension systems in order to show the difference and the novelty of the current results.

8p tamynhan6 14-09-2020 12 2   Download

The electron – optical phonon scattering is considered in detail to studying the Ettingshausen effect in doped semiconductor superlattice under the influence of phonon confinement and laser radiation. The analytical expressions for tensors and the Ettingshausen coefficient are obtained by using the kinetic equation method.

8p tamynhan6 14-09-2020 15 1   Download

Quantum theory of absorption of electromagnetic wave (EMW) by confined electrons in two - dimensional (2D) graphene has been studied by using the quantum kinetic equation in assumption of electron - optical phonon scattering.

10p vigustavia2711 19-12-2019 11 0   Download

The influence of confined acoustic phonons on the Hall Coefficient (HC) in a Cylindrycal Quantum Wire (CQW) with an infinite potential (for electron – confined acoustic phonons scattering). Consider a case where CQW is placed in a perpendicular magnetic field

6p vitheseus2711 24-10-2019 13 0   Download