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FINDINGS IN NANOTECHNOLOGY REPORTED FROM A.K. ATAYAN AND CO-RESEARCHERS
Nanotechnology Weekly
June 14, 2010
"Electronic states and interband transitions in the cylindrical quantum
layer Ga1-x1Alx1As/GaAs/Ga1-x2Alx2 As are studied. As a confinement
potential the radial analogue of Smorodinsky-Winternitz potential is
considered," scientists in Yerevan, Armenia report.
"The quantum transitions are studied in dipole approximation at the
presence of the magnetic field directed along layer axis. The selection
rules and threshold frequencies of absorption for transitions between
heavy holes' band and conduction band, as well as light holes' band and
conduction band are obtained. It is shown that these frequencies lie in
visible red and near infra-red spectrum. In the frame of perturbation
theory the influence of the weak electric field on the character of
interband transitions is discussed," wrote A.K. Atayan and colleagues.
The researchers concluded: "In particular, it is found that selection
rules for interband transitions change depending on electric field
orientation."
Atayan and colleagues published their study in the Journal of
Computational and Theoretical Nanoscience (Interband Magnetoabsorption
in Cylindrical Quantum Layer with Smorodinsky-Winternitz Confinement
Potential. Journal of Computational and Theoretical Nanoscience,
2010;7(6):1165-1171).
For additional information, contact H.A. Sarkisyan, Russian Armenian
University, 123 Hovsep Emin St., Yerevan 0051, Armenia.
The publisher's contact information for the Journal of Computational
and Theoretical Nanoscience is: American Scientific Publishers,
25650 North Lewis Way, Stevenson Ranch, CA 91381-1439, USA.
From: A. Papazian
Nanotechnology Weekly
June 14, 2010
"Electronic states and interband transitions in the cylindrical quantum
layer Ga1-x1Alx1As/GaAs/Ga1-x2Alx2 As are studied. As a confinement
potential the radial analogue of Smorodinsky-Winternitz potential is
considered," scientists in Yerevan, Armenia report.
"The quantum transitions are studied in dipole approximation at the
presence of the magnetic field directed along layer axis. The selection
rules and threshold frequencies of absorption for transitions between
heavy holes' band and conduction band, as well as light holes' band and
conduction band are obtained. It is shown that these frequencies lie in
visible red and near infra-red spectrum. In the frame of perturbation
theory the influence of the weak electric field on the character of
interband transitions is discussed," wrote A.K. Atayan and colleagues.
The researchers concluded: "In particular, it is found that selection
rules for interband transitions change depending on electric field
orientation."
Atayan and colleagues published their study in the Journal of
Computational and Theoretical Nanoscience (Interband Magnetoabsorption
in Cylindrical Quantum Layer with Smorodinsky-Winternitz Confinement
Potential. Journal of Computational and Theoretical Nanoscience,
2010;7(6):1165-1171).
For additional information, contact H.A. Sarkisyan, Russian Armenian
University, 123 Hovsep Emin St., Yerevan 0051, Armenia.
The publisher's contact information for the Journal of Computational
and Theoretical Nanoscience is: American Scientific Publishers,
25650 North Lewis Way, Stevenson Ranch, CA 91381-1439, USA.
From: A. Papazian