Quasi-two-dimensional exciton-polaron in CdTe/(Cd, Mn)Te quantum wells

A. V. Nurmikko, X. C. Zhang, S. K. Chang, L. A. Kolodziejski, R. L. Gunshor, S. Datta

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The CdTe/(Cd, Mn)Te is a new superlattice system whose low temperature luminescence shows high quantum efficiency and large magnetic field induced energy shifts which imply exciton localization at the heterointerfaces in (111) oriented samples. The anisotropies and high field behavior in the exciton spectra offer important evidence for 2D character of the localized excitons. Further, the energy shifts show an anomalous temperature dependence which is not compatible with paramagnetic behavior of the Mn-ion spin system. Time-resolved luminescence experiments by picosecond laser techniqiues show how dynamical spectral shifts occur has a substantial polaron component. The main physical contribution to the polaron effects is likely to be magnetic origin, deriving from the spin exchange effects with the Mn-ions.

Original languageEnglish
Pages (from-to)665-670
Number of pages6
JournalSurface Science
Volume170
Issue number1-2
DOIs
Publication statusPublished - 1986 Apr 3

Fingerprint

Gene Conversion
Excitons
Semiconductor quantum wells
excitons
quantum wells
Luminescence
shift
Ions
luminescence
spin exchange
Quantum efficiency
quantum efficiency
Ion exchange
ions
Anisotropy
Magnetic fields
Temperature
temperature dependence
anisotropy
energy

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Nurmikko, A. V., Zhang, X. C., Chang, S. K., Kolodziejski, L. A., Gunshor, R. L., & Datta, S. (1986). Quasi-two-dimensional exciton-polaron in CdTe/(Cd, Mn)Te quantum wells. Surface Science, 170(1-2), 665-670. https://doi.org/10.1016/0039-6028(86)91037-X
Nurmikko, A. V. ; Zhang, X. C. ; Chang, S. K. ; Kolodziejski, L. A. ; Gunshor, R. L. ; Datta, S. / Quasi-two-dimensional exciton-polaron in CdTe/(Cd, Mn)Te quantum wells. In: Surface Science. 1986 ; Vol. 170, No. 1-2. pp. 665-670.
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Nurmikko, AV, Zhang, XC, Chang, SK, Kolodziejski, LA, Gunshor, RL & Datta, S 1986, 'Quasi-two-dimensional exciton-polaron in CdTe/(Cd, Mn)Te quantum wells', Surface Science, vol. 170, no. 1-2, pp. 665-670. https://doi.org/10.1016/0039-6028(86)91037-X

Quasi-two-dimensional exciton-polaron in CdTe/(Cd, Mn)Te quantum wells. / Nurmikko, A. V.; Zhang, X. C.; Chang, S. K.; Kolodziejski, L. A.; Gunshor, R. L.; Datta, S.

In: Surface Science, Vol. 170, No. 1-2, 03.04.1986, p. 665-670.

Research output: Contribution to journalArticle

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AU - Nurmikko, A. V.

AU - Zhang, X. C.

AU - Chang, S. K.

AU - Kolodziejski, L. A.

AU - Gunshor, R. L.

AU - Datta, S.

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Nurmikko AV, Zhang XC, Chang SK, Kolodziejski LA, Gunshor RL, Datta S. Quasi-two-dimensional exciton-polaron in CdTe/(Cd, Mn)Te quantum wells. Surface Science. 1986 Apr 3;170(1-2):665-670. https://doi.org/10.1016/0039-6028(86)91037-X