The far-infrared absorption of a periodic 2DEG in the transition regime between weak and strong modulation |
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Authors: | Vidar Gudmundsson Ingibjrg Magnúsdttir Sigur
ur I Erlingsson |
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Institution: | Vidar Gudmundsson, Ingibjörg Magnúsdóttir,Sigur
ur I. Erlingsson |
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Abstract: | We study the optical absorption of arrays of quantum dots and antidots in a perpendicular homogeneous magnetic field. The electronic system is described quantum mechanically using a Hartree approximation for the mutual Coulomb interaction of the electrons. The evolution of the absorption is traced from the homogeneous to the strongly modulated case identifying the ensuing collective modes, the magnetoplasmons, and their correlations with inherent length scales of the system. |
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Keywords: | Arrays Quantum dots Antidots Far-infrared absorption |
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