Nonequilibrium charge dynamics of light-driven rings threaded by a magnetic flux

Moskalenko, A. S. and Matos-Abiague, A. and Berakdar, J. (2007) Nonequilibrium charge dynamics of light-driven rings threaded by a magnetic flux. EPL, 78 (5): 57001. ISSN 0295-5075,

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Abstract

We study theoretically the charge polarization and the charge current dynamics of a mesoscopic ring driven by short asymmetric electromagnetic pulses and threaded by an external static magnetic flux. It is shown that the pulse-induced charge polarization and the associated light emission is controllable by tuning the external magnetic flux. Applying two mutually perpendicular pulses triggers a charge current in the ring. The interplay between this nonequilibrium and the persistent currents is investigated and the conditions under which the pulses stop the persistent current are identified. Copyright (C) EPLA, 2007.

Item Type: Article
Uncontrolled Keywords: PERSISTENT CURRENTS; MESOSCOPIC RINGS; PULSES; SINGLE; GENERATION; FIELD; LOOP;
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Theroretical Physics
Depositing User: Dr. Gernot Deinzer
Date Deposited: 12 Jan 2021 07:15
Last Modified: 12 Jan 2021 07:15
URI: https://pred.uni-regensburg.de/id/eprint/33408

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