研究目的
Investigating the effect of confined acoustic phonon on the dependence of the magnetic return on magnetic field with scattering mechanism the confined electronic - confined acoustic phonon - The Shubnikov - de Haas in infinite perpendicular QW.
研究成果
The analytical expressions for the magnetoresistance in the QW obtained depend on the magnetic field B, the frequency ?, E amplitude of the laser radiation, the QW width L, the temperature T of the system and especially The quantum number m represents the phonon confinement. The oscillations amplitude of magnetoresistance decreases with the increase of the influence of the confined acoustic phonon.
研究不足
The study is theoretical and focuses on a specific type of quantum well (GaAs/AlGaAs). The practical application and experimental validation are not discussed.
1：Experimental Design and Method Selection:
The study uses the quantum kinetic equation method to investigate the Shubnikov–de Haas magneto resistance oscillations in the QW under the influence of confined acoustic phonons.
2：Sample Selection and Data Sources:
The study focuses on a GaAs/AlGaAs quantum well.
3：List of Experimental Equipment and Materials:
Not explicitly mentioned.
4：Experimental Procedures and Operational Workflow:
The study involves setting up the quantum kinetic equation for electrons distribution function and obtaining analytical expressions for the characteristic quantities of oscillations such as conductivity tensor, magneto resistance.
5：Data Analysis Methods:
Numerical calculations and investigations of the dependency of the magnetic impedance of the factors with the parameters of the GaAs/AlGaAs quantum chambers were performed.
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