Impurity states and the diamagnetic susceptibility of a donor in a GaAs/Al x Ga 1-x As Triangular Quantum Well under hydrostatic pressure

2017 ◽  
Vol 110 ◽  
pp. 364-369 ◽  
Author(s):  
Panneer Selvam Kalpana ◽  
Kalyanasundaram Jayakumar
Keyword(s):  
Hydrostatic Pressure ◽  
Quantum Well ◽  
Diamagnetic Susceptibility ◽  
Impurity States

INFLUENCE OF PRESSURE ON THE DIAMAGNETIC SUSCEPTIBILITY OF HYDROGENIC DONOR IN SOME LOW-LYING EXCITED STATES IN A QUANTUM WELL

2007 ◽  
Vol 06 (01) ◽  
pp. 37-40 ◽  
Author(s):  
P. NITHIANANTHI ◽  
K. JAYAKUMAR
Keyword(s):  
Hydrostatic Pressure ◽  
Quantum Well ◽  
Effective Mass ◽  
Excited States ◽  
Diamagnetic Susceptibility ◽  
Mass Approximation ◽  
X Band ◽  
Hydrogenic Donor ◽  
Band Mixing ◽  
Band Crossing

The influence of Γ–X band crossing due to the applied hydrostatic pressure on the diamagnetic susceptibility (χ dia ) of a donor in low-lying excited states like 2s, 2p0, 2p± in a GaAs / Al x Ga 1-x As Quantum Well has been investigated in the effective mass approximation by considering the nonparabolicity of the conduction band. We notice that the effect of Γ–X band mixing is significant on χ dia of a donor lying in excited states. Moreover, the effect of non-parabolicity on χ dia is also predominant for lower well width region. The results are presented and discussed.

THE EFFECTS OF TEMPERATURE AND HYDROSTATIC PRESSURE ON THE DIAMAGNETIC SUSCEPTIBILITY OF A DONOR IN A QUANTUM WELL

2011 ◽  
Vol 18 (05) ◽  
pp. 147-152 ◽  
Author(s):  
U. YESILGUL ◽  
F. UNGAN ◽  
E. KASAPOGLU ◽  
H. SARI ◽  
I. SÖKMEN
Keyword(s):  
Hydrostatic Pressure ◽  
Binding Energy ◽  
Quantum Well ◽  
Effective Mass ◽  
Diamagnetic Susceptibility ◽  
Effective Mass Approximation ◽  
Mass Approximation ◽  
Hydrogenic Donor ◽  
Different Temperatures ◽  
Effects Of Temperature

Using the effective-mass approximation within a variational scheme, we have calculated the diamagnetic susceptibility and binding energy of a hydrogenic donor in a quantum well under different temperatures and hydrostatic pressure conditions. Our calculation have revealed the dependence of the diamagnetic susceptibility and the impurity binding on temperature and hydrostatic pressure.

Impurity States and diamagnetic susceptibility of a donor in a triangular quantum well

2017 ◽  
Author(s):  
P. Kalpana ◽  
A. Merwyn Jasper D. Reuben ◽  
P. Nithiananthi ◽  
K. Jayakumar
Keyword(s):  
Quantum Well ◽  
Diamagnetic Susceptibility ◽  
Impurity States

Controlled modulation of the binding energy of impurity states in a quantum-well system

1996 ◽  
Vol 166 (4) ◽  
pp. 447-448 ◽  
Author(s):  
Vladimir I. Belyavskii ◽  
Yurii V. Kopaev ◽  
N.V. Kornyakov
Keyword(s):  
Binding Energy ◽  
Quantum Well ◽  
Impurity States

Degeneracy Factor and Pressure Dependence of Si-Induced Deep Impurity States in AlxGa1-xAs from Transport Experiments under Hydrostatic Pressure

1991 ◽  
Vol 38-41 ◽  
pp. 857-862 ◽  
Author(s):  
S. Azema ◽  
V. Mosser ◽  
Jean Camassel ◽  
R. Piotrzkowski ◽  
Jean-Louis Robert ◽  
...  
Keyword(s):  
Hydrostatic Pressure ◽  
Pressure Dependence ◽  
Deep Impurity ◽  
Impurity States
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