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Switching between ground states of an InAs quantum dot doped with a single Mn atom

Title data

Thuberg, D. ; Reiter, Doris ; Axt, Vollrath M. ; Kuhn, Tilmann:
Switching between ground states of an InAs quantum dot doped with a single Mn atom.
In: Physical Review B. Vol. 88 (2013) Issue 8 . - Art.Nr. 085312, 7 S..
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.88.085312

Abstract in another language

The ultrafast light-induced dynamics in an InAs quantum dot doped with a single Mn atom is studied theoretically. Due to the exchange interaction between the Mn atom and the acceptor hole in the quantum dot, an effective two-level system is formed in the ground-state manifold. We show that this two-level system can be controlled coherently on a picosecond time scale. The control involves an optical manipulation of the quantum dot exciton by using either a series of two ultrafast pulses or a single extended laser pulse. For the excitation with two pulses, we discuss the optical signals that could be used in time-resolved spectroscopy to monitor the dynamics. We compare these results to the spin dynamics in a CdTe quantum dot doped with a single Mn atom.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: magnetic quantum dot; ultrafast dynamics; spintronics; exchange interaction; nonlinear optics; coherent control; optical control; spin control; all optical spin control; Mn doped quantum dot; spin switching; exchange interaction
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics III > Chair Theoretical Physics III - Univ.-Prof. Dr. Martin Axt
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics III
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 02 Nov 2017 15:19
Last Modified: 02 Nov 2017 15:19
URI: https://eref.uni-bayreuth.de/id/eprint/40255