Open AccessTemperature effect on the binding energy and the diamagnetic susceptibility of a magneto-donor in Cylindrical Quantum Dot (GaAs/GaAlAs)
Author(s) -
Sanae Janati Edrissi,
Izeddine Zorkani,
Khalid Rahmani,
Younes Chrafih,
Anouar Jorio,
Mohammed Khenfouch
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1292/1/012005
Subject(s) - diamagnetism , condensed matter physics , quantum dot , binding energy , magneto , magnetic susceptibility , magnetic field , effective mass (spring–mass system) , chemistry , physics , materials science , atomic physics , quantum mechanics , magnet
In this work, the effect of the temperature on the binding energy and the diamagnetic susceptibility of a shallow magneto-donor confined to move in a cylindrical quantum dot made out of GaAs/GaAlAs is studied within the effective mass approximation. We describe the quantum confinement by an infinite deep potential. The results show that when the temperature or the magnetic field increases, (i) the binding energy increases and (ii) the absolute value of the diamagnetic susceptibility decreases. Its effects depend strongly on the size of the CQD.