Coupling between magnetic/nonmagnetic semiconductor quantum dots in double-layer geometry

S. Lee; D. Y. Shin; L. Titova; M. Kutrowski; M. Dobrowolska; J. K. Furdyna

doi:10.1063/1.1615831

Coupling between magnetic/nonmagnetic semiconductor quantum dots in double-layer geometry

S. Lee, D. Y. Shin, L. Titova, M. Kutrowski, M. Dobrowolska, J. K. Furdyna

Department of Physics

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

The coupling between magnetic/nonmagnetic semiconductor quantum dots (QD) in double-layer geometry is investigated. A striking intensity drop is observed in the photoluminence (PL) emitted by the double-layer quantum dots (DLQD) when an external magnetic field is applied, which sharply contrasts with the increase of PL intensity observed in the reference single QD layer consisting of CdMnSe QDs. The phenomena is discussed in terms of the multidot band structure whose relative band-edge alignment is changing with magnetic field via the Zeeman splitting in the diluted magnetic semiconductor (DMS) QDs.

Original language	English
Pages (from-to)	2865-2867
Number of pages	3
Journal	Applied Physics Letters
Volume	83
Issue number	14
DOIs	https://doi.org/10.1063/1.1615831
Publication status	Published - 2003 Oct 6

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.1615831

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abstract = "The coupling between magnetic/nonmagnetic semiconductor quantum dots (QD) in double-layer geometry is investigated. A striking intensity drop is observed in the photoluminence (PL) emitted by the double-layer quantum dots (DLQD) when an external magnetic field is applied, which sharply contrasts with the increase of PL intensity observed in the reference single QD layer consisting of CdMnSe QDs. The phenomena is discussed in terms of the multidot band structure whose relative band-edge alignment is changing with magnetic field via the Zeeman splitting in the diluted magnetic semiconductor (DMS) QDs.",

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AU - Lee, S.

AU - Shin, D. Y.

AU - Titova, L.

AU - Kutrowski, M.

AU - Dobrowolska, M.

AU - Furdyna, J. K.

PY - 2003/10/6

Y1 - 2003/10/6

N2 - The coupling between magnetic/nonmagnetic semiconductor quantum dots (QD) in double-layer geometry is investigated. A striking intensity drop is observed in the photoluminence (PL) emitted by the double-layer quantum dots (DLQD) when an external magnetic field is applied, which sharply contrasts with the increase of PL intensity observed in the reference single QD layer consisting of CdMnSe QDs. The phenomena is discussed in terms of the multidot band structure whose relative band-edge alignment is changing with magnetic field via the Zeeman splitting in the diluted magnetic semiconductor (DMS) QDs.

AB - The coupling between magnetic/nonmagnetic semiconductor quantum dots (QD) in double-layer geometry is investigated. A striking intensity drop is observed in the photoluminence (PL) emitted by the double-layer quantum dots (DLQD) when an external magnetic field is applied, which sharply contrasts with the increase of PL intensity observed in the reference single QD layer consisting of CdMnSe QDs. The phenomena is discussed in terms of the multidot band structure whose relative band-edge alignment is changing with magnetic field via the Zeeman splitting in the diluted magnetic semiconductor (DMS) QDs.

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Coupling between magnetic/nonmagnetic semiconductor quantum dots in double-layer geometry

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