Application of Tietz Potential to Study Singlet-Triplet Transition of a Two-Electron Quantum Dot

2014 ◽  
Vol 62 (1) ◽  
pp. 77-80 ◽  
Author(s):  
R. Khordad ◽  
B. Mirhosseini
Keyword(s):  
Quantum Dot ◽  
Electron Quantum ◽  
Tietz Potential ◽  
Triplet Transition

Ground-state transitions beyond the singlet-triplet transition for a two-electron quantum dot

2007 ◽  
Vol 75 (12) ◽  
Author(s):  
Yoshifumi Nishi ◽  
Yasuhiro Tokura ◽  
James Gupta ◽  
Guy Austing ◽  
Seigo Tarucha
Keyword(s):  
Quantum Dot ◽  
Ground State ◽  
State Transitions ◽  
Electron Quantum ◽  
Triplet Transition

InAs/GaAs single-electron quantum dot qubit

2001 ◽  
Vol 90 (12) ◽  
pp. 6151-6155 ◽  
Author(s):  
Shu-Shen Li ◽  
Jian-Bai Xia ◽  
Jin-Long Liu ◽  
Fu-Hua Yang ◽  
Zhi-Chuan Niu ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Single Electron ◽  
Electron Quantum

scholarly journals Semiconductor few-electron quantum dot operated as a bipolar spin filter

2004 ◽  
Vol 70 (24) ◽  
Author(s):  
R. Hanson ◽  
L. M. K. Vandersypen ◽  
L. H. Willems van Beveren ◽  
J. M. Elzerman ◽  
I. T. Vink ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Spin Filter ◽  
Electron Quantum

The magnetization and magnetic susceptibility of GaAs Gaussian quantum dot with donor impurity in a magnetic field

2019 ◽  
Vol 33 (34) ◽  
pp. 1950422 ◽  
Author(s):  
Mohammad Elsaid ◽  
Mohamoud Ali ◽  
Ayham Shaer
Keyword(s):  
Magnetic Field ◽  
Magnetic Susceptibility ◽  
Quantum Dot ◽  
Theoretical Study ◽  
Donor Impurity ◽  
Confinement Potential ◽  
Potential Depth ◽  
Diagonalization Method ◽  
Electron Quantum ◽  
Exact Diagonalization Method

We present a theoretical study to investigate the effect of donor impurity on the magnetization (M) and the magnetic susceptibility [Formula: see text] of single electron quantum dot (QD) with Gaussian confinement in the presence of a magnetic field. We solve the Hamiltonian of this system, including the spin, by using the exact diagonalization method. The ground state binding energy (BE) of an electron has been shown as a function of QD radius and confinement potential depth. The behaviors of the magnetization and the magnetic susceptibility of a QD have been studied as a function of temperature, confinement potential depth, quantum radius and magnetic field. We have shown the effect of donor impurity on the magnetization and magnetic susceptibility curves of Gaussian quantum dot (GQD).

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