NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2019, 10 (5), P. 530–535
The heat capacity of a semiconductor quantum dot in magnetic fields
Ayham Shaer – Physics Department, Faculty of Science, An-Najah National University, Nablus, West Bank, Palestine
Mohammad K. Elsaid – Physics Department, Faculty of Science, An-Najah National University, Nablus, West Bank, Palestine; mkelsaid@najah.edu
Eshtiaq Hjaz – Physics Department, Faculty of Science, An-Najah National University, Nablus, West Bank, Palestine
The heat capacity of two interacting electrons confined in a quantum dot presented in a magnetic field has been calculated by solving the Hamiltonian using the exact diagonalization method. The statistical average energies for confined and interacting electrons have been computed for various values
of magnetic fields, confining frequency and temperature. We had investigated the dependence of the heat capacity on quantum dot Hamiltonian’s parameters and temperature. The singlettriplet transitions in the ground state of the quantum dot spectra and the corresponding jumps in the heat capacity curves had been shown. The comparisons show that our results are in very good agreement with theoretical reported works.
Keywords: quantum dot, magnetic field, exact diagonalization, heat capacity.
PACS 73.21.La, 65.80.-g
DOI 10.17586/2220-8054-2019-10-5-530-535
