Quantum confinement induced shift in energy band edges and band gap of a spherical quantum dot
نویسندگان
چکیده
منابع مشابه
Electron and hole states in quantum dot quantum wells within a spherical eight-band model
In order to study heterostructures composed both of materials with strongly different parameters and of materials with narrow band gaps, we have developed an approach @E. P. Pokatilov et al., Phys. Rev. B 64, 245328 ~2001!, preceding paper!#, which combines the spherical eight-band effective-mass Hamiltonian and the Burt’s envelope-function representation. Using this method, electron and hole s...
متن کاملElectron and hole states in quantum-dot quantum wells within a spherical 8-band model
In order to study heterostructures composed both of materials with strongly different parameters and of materials with narrow band gaps, we have developed an approach [E. P. Pokatilov et al., Phys. Rev. B (the preceding article in the present issue)], which combines the spherical 8-band effectivemass Hamiltonian and the Burt’s envelope function representation. Using this method, electron and ho...
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The combined effect of hydrostatic pressure and temperature on correlation energy in a triplet state of two electron spherical quantum dot with square well potential is computed. The result is presented taking GaAs dot as an example. Our result shows the correlation energies are i)negative in the triplet state contrast to the singlet state ii) it increases with increase in pressure iii)further...
متن کاملEnergy states and exchange energy of coupled double quantum dot in a magnetic field
The ground state energies of two interacting electrons confined in a coupled double quantum dot (DQD) presented in a magnetic field has been calculated by solving the relative Hamiltonian using variational and exact diagonalization methods. The singlet-triplet transitions in the angular momentum and spin of the quantum dot ground state had been shown .We have studied the magnetic field versus c...
متن کاملEnergy states and exchange energy of coupled double quantum dot in a magnetic field
The ground state energies of two interacting electrons confined in a coupled double quantum dot (DQD) presented in a magnetic field has been calculated by solving the relative Hamiltonian using variational and exact diagonalization methods. The singlet-triplet transitions in the angular momentum and spin of the quantum dot ground state had been shown .We have studied the magnetic field versus c...
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ژورنال
عنوان ژورنال: Physica B: Condensed Matter
سال: 2018
ISSN: 0921-4526
DOI: 10.1016/j.physb.2017.11.046