Published 2006 | Version v1
Journal article Metadata-only

Tuning the magnetic properties of ZnCdSe/ZnSe quantum dots by thermal annealing

Creators

  • 1. Technische Physik, Universitaet Wuerzburg, Am Hubland, 97074 Wuerzburg (Germany)
  • 2. Experimentelle Physik III, Universitaet Wuerzburg, Am Hubland, 97074 Wuerzburg (Germany)
  • 3. CEA-CNRS NPSC, SP2M/DRFMC/CEA-Grenoble, 17 rue des Martyrs, 38054 Grenoble cedex (France)

Description

Photoluminescence of ZnCdSe/ZnSe quantum dots treated by thermal annealing is investigated in magnetic fields up to 6 T. Thermal annealing leads to considerable changes of the circular polarization properties, which we attribute to different spin relaxation times and exciton lifetimes. A negative diamagnetic shift is observed for quantum dots showing the largest TA-induced shift of 80 meV. Possible origins are discussed. (copyright 2006 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1002/pssc.200671609

Additional details

Identifiers

DOI
10.1002/pssc.200671609;

Publishing Information

Journal Title
Physica Status Solidi. C, Conferences
Journal Volume
3
Journal Issue
11
Journal Page Range
p. 3904-3907
ISSN
1610-1634

Conference

Title
4. International conference on semiconductor quantum dots (QD2006)
Dates
1-5 May 2006
Place
Chamonix-Mont Blanc (France)

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
38009886
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANNEALING; CADMIUM SELENIDES; DE-EXCITATION; EMISSION SPECTRA; ENERGY SPECTRA; EXCITED STATES; EXCITONS; LIFETIME; MAGNETIC FIELDS; MAGNETIC PROPERTIES; MAGNETO-OPTICAL EFFECTS; PHOTOLUMINESCENCE; POLARIZATION; QUANTUM DOTS; RELAXATION; RELAXATION TIME; SPECTRAL SHIFT; TEMPERATURE RANGE 0400-1000 K; VISIBLE SPECTRA; ZINC SELENIDES
Descriptors DEC
CADMIUM COMPOUNDS; CHALCOGENIDES; EMISSION; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; HEAT TREATMENTS; LUMINESCENCE; NANOSTRUCTURES; PHOTON EMISSION; PHYSICAL PROPERTIES; QUASI PARTICLES; SELENIDES; SELENIUM COMPOUNDS; SPECTRA; TEMPERATURE RANGE; ZINC COMPOUNDS

Optional Information

Notes
With 3 figs., 9 refs.. SICI: 1610-1634(200612)3:11<3904::AID-PSSC200671609>3.0.TX;2-Y