Single quantum dot pairs with controllable interdot coupling | Zendy

Welsch M. K. | Zendy; Bacher G. | Zendy; Schömig H. | Zendy; Forchel A. | Zendy; Zaitsev S. | Zendy; Becker C. R. | Zendy; Molenkamp L. W. | Zendy

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Single quantum dot pairs with controllable interdot coupling

Author(s) -

Welsch M. K.,

Bacher G.,

Schömig H.,

Forchel A.,

Zaitsev S.,

Becker C. R.,

Molenkamp L. W.

Publication year - 2003

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.200303054

Subject(s) - quantum dot , coupling (piping) , physics , heterojunction , condensed matter physics , magnetic field , optoelectronics , quantum mechanics , materials science , metallurgy

We report on a new approach for preparing single pairs of quantum dots with controllable interdot coupling. Starting from a double quantum well heterostructure, a selective intermixing technique was applied to define pairs of vertically stacked single quantum dots. The incorporation of Mn 2+ ions in only one of the dots results in strongly different effective g ‐factors of the dots, enabling us to control the interdot coupling simply by applying an external magnetic field.

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