Fine structure of exciton excited levels in a quantum dot with a magnetic ion
نویسندگان
چکیده
منابع مشابه
Fine structure and optical spectra of exciton in a quantum dot
Electron-hole exchange interaction provides transverse (T) and longitudinal (L) characters of exciton. In homogeneous bulk crystal, exciton states are classified into T and L modes, and the T-mode exciton is optically active. However, T-mode exciton confined in quantum dot is optically forbidden. We classify exciton states confined in spherical and cylindrical quantum dots into L, T, and LT-mix...
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Ming Gong,1,2,* B. Hofer,3 E. Zallo,3 R. Trotta,3,4,† Jun-Wei Luo,5,6,‡ O. G. Schmidt,3 and Chuanwei Zhang2 1Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China 2Department of Physics, The University of Texas at Dallas, Richardson, Texas 75080, USA 3Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstr. 20, D-01069 Dresden, Germany 4...
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Fine-structure splitting (FSS) of excitons in semiconductor nanostructures is a key parameter that has significant implications in photon entanglement and polarization conversion between electron spins and photons, relevant to quantum information technology and spintronics. Here, we investigate exciton FSS in self-organized lateral InAs/GaAs quantum-dot molecular structures (QMSs) including lat...
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: Physical Review B
سال: 2007
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.75.205313