Journal of Theoretical and Applied Physics (JTAP) Heat capacity and entropy of Gaussian spherical quantum dot in the presence of donor impurity Volume 13, 2019 Issue 3, September and October 2019 2023 11 17 Heat capacity and entropy of Gaussian spherical quantum dot in the presence of donor impurity 10.1007/s40094-019-0336-1 EN Nehal S. Yahyah Physics Department, An-Najah National University, Nablus, West Bank, Palestine Mohammad K. Elsaid Physics Department, An-Najah National University, Nablus, West Bank, Palestine 0000-0002-1392-3192 Ayham Shaer Physics Department, An-Najah National University, Nablus, West Bank, Palestine Journal Article 2023 11 17 AbstractThe energy states of shallow donor impurity in GaAs/AlGaAs quantum dot heterostructure with Gaussian potential have been calculated by the shifted 1/N expansion method. The effects of the impurity on the ground state energy and average statistical energy have been investigated. The present calculations show that the donor impurity modifies significantly the electron energy levels of spherical quantum dot and thermal properties. In addition, we have also displayed the variations of the heat capacity and entropy of donor impurity in quantum dot with the radius, confining potential depth, dimension and temperature. The comparison shows that our results are in very good agreement with the theoretical reported work.