Finite-difference calculation of donor energy levels in a spherical quantum dot subject to a magnetic field

2015 ◽  
Vol 66 ◽  
pp. 128-132 ◽  
Author(s):  
G.V.B. de Souza ◽  
A. Bruno-Alfonso
Keyword(s):  
Magnetic Field ◽  
Finite Difference ◽  
Quantum Dot ◽  
Energy Levels ◽  
Spherical Quantum Dot ◽  
Difference Calculation

scholarly journals Magnetic field effect on the energy levels of an exciton in a GaAs quantum dot: Application for excitonic lasers

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
K. Luhluh Jahan ◽  
A. Boda ◽  
I. V. Shankar ◽  
Ch. Narasimha Raju ◽  
Ashok Chatterjee
Keyword(s):  
Magnetic Field ◽  
Quantum Dot ◽  
Field Effect ◽  
Energy Levels ◽  
Magnetic Field Effect ◽  
Gaas Quantum Dot

Effect of temperature on magnetic susceptibility and thermodynamic properties of an asymmetric quantum dot in tilted magnetic field

2015 ◽  
Vol 29 (23) ◽  
pp. 1550127 ◽  
Author(s):  
R. Khordad
Keyword(s):  
Magnetic Field ◽  
Magnetic Susceptibility ◽  
Quantum Dot ◽  
Specific Heat ◽  
Energy Levels ◽  
Effect Of Temperature ◽  
Magnetic Field Direction ◽  
Asymmetric Quantum ◽  
Gaas Quantum Dot ◽  
The Magnetic Field

In this paper, the specific heat, entropy and magnetic susceptibility of an asymmetric GaAs quantum dot (QD) are studied under the influence of temperature and a tilted external magnetic field. We first calculate the analytical wave functions and energy levels using a transformation to simplify the Hamiltonian of the system. Then, we obtain the analytical expressions for specific heat, entropy and magnetic susceptibility as the function of temperature, magnetic field and its direction for various anisotropy of the system. According to the results obtained from the present work, we find that (i) the specific heat and entropy are decreased when the magnetic field increases. (ii) When anisotropy is increased, the specific heat and entropy decrease. (iii) At large magnetic fields, the anisotropy has not important effect on specific heat and entropy. In briefly, the magnetic field, magnetic field direction and anisotropy play important roles in the specific heat, entropy and magnetic susceptibility of an asymmetric QD.

Magnetic field and dielectric environment effects on an exciton trapped by an ionized donor in a spherical quantum dot

2017 ◽  
Vol 111 ◽  
pp. 1082-1092 ◽  
Author(s):  
N. Aghoutane ◽  
E. Feddi ◽  
M. El-Yadri ◽  
J. Bosch Bailach ◽  
F. Dujardin ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Quantum Dot ◽  
Spherical Quantum Dot ◽  
Environment Effects ◽  
Dielectric Environment
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