Anti-parallel spin interaction between the carriers in coupled quantum dots

Sang Hoon Lee, J. K. Furdyna, M. Dobrowolska

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We have performed magneto-photoluminescence (PL) experiments on a self-assembled coupled double quantum dot (QD) system consisting of adjacent CdSe and CdZnSe QD layers. We have observed well separated two PL peaks in such a double layer QD system, corresponding to the CdSe and the CdZnSe QDs. The excitation power dependence of relative PL intensity of the two QD structures clearly shows characteristics of coupled system. This system also exhibits significantly different degree of polarization between CdSe and CdZnSe QD when a magnetic field applied, in contrast to the behavior shown by single-layer CdSe or CdZnSe QD systems, which show nearly identical polarization dependence on the field. The observed behavior was interpreted in terms anti-parallel spin interaction between carriers localized in pairs of QDs that are electronically coupled.

Original languageEnglish
Title of host publicationInstitute of Physics Conference Series
EditorsJ.-C. Woo, H. Hasegawa, Y.-S. Kwon, T. Yao, K.-H. Yoo
Pages447-450
Number of pages4
Volume184
Publication statusPublished - 2005
Event31st International Symposium of Compound Semiconductors 2004 - Seoul, Korea, Republic of
Duration: 2004 Sep 122004 Dec 16

Other

Other31st International Symposium of Compound Semiconductors 2004
CountryKorea, Republic of
CitySeoul
Period04/9/1204/12/16

Fingerprint

quantum dots
interactions
photoluminescence
polarization
magnetic fields
excitation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Lee, S. H., Furdyna, J. K., & Dobrowolska, M. (2005). Anti-parallel spin interaction between the carriers in coupled quantum dots. In J-C. Woo, H. Hasegawa, Y-S. Kwon, T. Yao, & K-H. Yoo (Eds.), Institute of Physics Conference Series (Vol. 184, pp. 447-450)

Anti-parallel spin interaction between the carriers in coupled quantum dots. / Lee, Sang Hoon; Furdyna, J. K.; Dobrowolska, M.

Institute of Physics Conference Series. ed. / J.-C. Woo; H. Hasegawa; Y.-S. Kwon; T. Yao; K.-H. Yoo. Vol. 184 2005. p. 447-450.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Lee, SH, Furdyna, JK & Dobrowolska, M 2005, Anti-parallel spin interaction between the carriers in coupled quantum dots. in J-C Woo, H Hasegawa, Y-S Kwon, T Yao & K-H Yoo (eds), Institute of Physics Conference Series. vol. 184, pp. 447-450, 31st International Symposium of Compound Semiconductors 2004, Seoul, Korea, Republic of, 04/9/12.
Lee SH, Furdyna JK, Dobrowolska M. Anti-parallel spin interaction between the carriers in coupled quantum dots. In Woo J-C, Hasegawa H, Kwon Y-S, Yao T, Yoo K-H, editors, Institute of Physics Conference Series. Vol. 184. 2005. p. 447-450
Lee, Sang Hoon ; Furdyna, J. K. ; Dobrowolska, M. / Anti-parallel spin interaction between the carriers in coupled quantum dots. Institute of Physics Conference Series. editor / J.-C. Woo ; H. Hasegawa ; Y.-S. Kwon ; T. Yao ; K.-H. Yoo. Vol. 184 2005. pp. 447-450
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