EFFECT OF TEMPERATURE AND DIAMAGNETIC SUSCEPTIBILITY ON IMPURITYBINDING ENERGY OF A SPHERICAL QUANTUM DOT
*A. Rejo Jeice & **K.S. Joseph Wilson
*Assistant Professor, Department of Physics, Annai Velankannai College, Tholayavattam, India
**Associate Professor, Department of Physics, Arul Anandar College, Karumathur, Madurai, India
The effect of temperature and diamagnetic susceptibiltiyon the hydrogenic donor impurity binding energies of the low-lying states in a GaAs/Ga1-xAlxAsspherical quantum dot is investigated by variational approach within the effective mass approximation. Our result shows that the impurity binding energy decreases with increase in temperature and the diamagnetic susceptibility increases with increase in temperature for larger dot radii and it is not it is not significant to low dot radii. All the calculations have been carried out with finite barriers, and good agreement is obtained with the existing literature values.
spherical quantum dot, square well confinement, binging energy, effective mass.