ANTİSİMETRİK AlxLGa1-xLAs/GaAs/AlxRGa1-xRAs KUANTUM KUYUSUNDA SICAKLIK VE HİDROSTATİK BASINÇ ETKİLERİ

Year 2017, Volume: 18 Issue: 2, 137 - 143, 15.12.2017

Serpil Sucu , Sema Minez , Hasan Akbaş

Abstract

Bu çalışmada sıcaklık ve hidrostatik basınç etkisi
altında simetrik Al_xGa_1-xAs/GaAs/ Al_xGa_1-xAs
ve antisimetrik Al_xLGa_1-xLAs/GaAs/ Al_xRGa_1-xRAs
kuantum kuyularında engel yükseklik oranlarının etkileri, etkin kütle
yaklaşımında varyasyonel yöntem kullanılarak çalışıldı. Taban durum yabancı
atom enerjileri, yabancı atom enerjisisnin dönüm noktaları ve  taban durum normalize edilmiş bağlanma
enerjileri hesaplandı. Sıcaklık, hidrostatik basınç, farklı engel yükseklikleri
ve yabancı atom konumunun, taban durum yabancı atom enerjisini ve yabancı atom
enerjisinin dönüm noktalarını önemli ölçüde değiştirdiği gösterildi.

Keywords

Dönüm noktası, Sıcaklık, Hidrostatik basınç, Bağlanma enerjisi

THE TEMPERATURE AND HYDROSTATİC PRESSURE EFFECTS İN THE ASYMMETRİC AlxLGa1- xLAs/GaAs/AlxRGa1-xRAs QUANTUM WELL

Abstract

In this work, we studied the effects of barrier height ratio VL/VR on symmetric AlxGa1-xAs/GaAs/AlxGa1-xAs
and asymmetric AlxLGa1-xLAs/GaAs/AlxRGa1-xRAs quantum wells under the presence of hydrostatic pressure and
temperature by using variational method with in the effective mass approximation. We calculated ground state impurity
energies, impurity energy turning points and ground state normalized binding energies as functions of the impurity position.
We observed that the ground state impurity energies and impurity energy turning points depends strongly on hydrostatic
pressure, temperature, different barrier heights and impurity positions.

Keywords

Turning point, Temperature, hydrostatic pressure, Binding energies, Normalized binding energies

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