Hidrostatik Basınç ve Sıcaklığın GaAs/Ga1-xAlxAs Küresel Kuantum Noktasındaki Yabancı Atom Self-Polarizasyonu ve Bağlanma Enerjisi Üzerindeki Etkileri

Abstract

2p uyarılmış durumunda, hidrostatik basınç ve sıcaklığın GaAs/Ga1-xAlxAs küresel kuantum noktasındaki yabancı atom self- polarizasyonu ve bağlanma enerjisi üzerindeki etkileri, etkin kütle yaklaşımı altında varyasyonel yöntem ile hesaplanmıştır. Bağlanma enerjisi ve yabancı atom self-polarizasyonu, sıcaklık, hidrostatik basınç, yabancı atomun konumu ve nokta yarıçapının bir fonksiyonu olarak incelenmiştir. Sonuçlar, yabancı atom self-polarizasyonunun ve bağlanma enerjisinin hidrostatik basınca ve sıcaklığa bağlı olduğunu göstermektedir. Ayrıca, bağlanma enerjisi hidrostatik basınçla artarken sıcaklık ile azalmakta, yabancı atom self-polarizasyonu ise hidrostatik basınçla azalırken sıcaklık ile artmaktadır. Bununla birlikte, sıcaklık ve hidrostatik basıncın etkisi altında yabancı atom self-polarizasyonunun hesaplanması, yabancı atomun sistemdeki konumu hakkında önemli bilgiler vermektedir.

Keywords

• Hidrostatik basınç
• Sıcaklık
• Bağlanma enerjisi
• Yabancı atom self-polarizasyon
• Uyarılmış durum

Effects of Hydrostatic Pressure and Temperature on İmpurity Self-Polarization and Binding Energy in GaAs/Ga1-xAlxAs Spherical Quantum Dot

Abstract

The effects of hydrostatic pressure and temperature on impurity self-polarization and binding energy in GaAs/Ga1-xAlxAs spherical quantum dot in 2p excited state were calculated by variational method under effective mass approach. Binding energy and impurity self-polarization were investigated as a function of temperature, hydrostatic pressure, impurity position and dot radius. The results show that impurity self-polarization and binding energy depend on hydrostatic pressure and temperature. In addition, binding energy increases with hydrostatic pressure and decreases with temperature, while impurity self-polarization decreases with hydrostatic pressure and increases with temperature. However, calculation of impurity self-polarization under the effect of temperature and hydrostatic pressure provides important information about the position of impurity in the system.

Keywords

• Hydrostatic pressure
• Temperature
• Binding energy
• Impurity self-polarization
• Excited state

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