Significance of an external magnetic field on two-phonon processes in gated lateral semiconductor quantum dots
Theoretical and numerical calculations of two-phonon processes on gated lateral semiconductor quantum dots (QDs) are outlined. A heterostructure made with two laterally coupled QDs, in the presence of an external magnetic field, has been employed in order to study the electron scattering rate due to...
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| description | Theoretical and numerical calculations of two-phonon processes on gated lateral semiconductor quantum dots (QDs) are outlined. A heterostructure made with two laterally coupled QDs, in the presence of an external magnetic field, has been employed in order to study the electron scattering rate due to two-phonon processes. The formalism is based on the acoustic phonon modes via the unscreened deformation potential and the piezoelectric interaction whenever the crystal lattice lacks a center of inversion symmetry. The rates are calculated by using second order perturbation theory. The strong dependence of the scattering rate on the external magnetic field, lattice temperature and QDs separation distance is presented. |
| doi_str_mv | 10.48550/arxiv.1405.7159 |
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A heterostructure made with two laterally coupled QDs, in the presence of an external magnetic field, has been employed in order to study the electron scattering rate due to two-phonon processes. The formalism is based on the acoustic phonon modes via the unscreened deformation potential and the piezoelectric interaction whenever the crystal lattice lacks a center of inversion symmetry. The rates are calculated by using second order perturbation theory. The strong dependence of the scattering rate on the external magnetic field, lattice temperature and QDs separation distance is presented.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.1405.7159</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Crystal lattices ; Deformation ; Dependence ; Electrons ; Heterostructures ; Lattice vibration ; Magnetic fields ; Mathematical analysis ; Perturbation methods ; Perturbation theory ; Phonons ; Physics - Mesoscale and Nanoscale Physics ; Piezoelectricity ; Quantum dots ; Scattering</subject><ispartof>arXiv.org, 2014-05</ispartof><rights>2014. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). 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| subjects | Crystal lattices Deformation Dependence Electrons Heterostructures Lattice vibration Magnetic fields Mathematical analysis Perturbation methods Perturbation theory Phonons Physics - Mesoscale and Nanoscale Physics Piezoelectricity Quantum dots Scattering |
| title | Significance of an external magnetic field on two-phonon processes in gated lateral semiconductor quantum dots |
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