Spin relaxation in CdTe/ZnTe quantum dots | Zendy

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Spin relaxation in CdTe/ZnTe quantum dots

Author(s) -

Ye Chen

Publication year - 2005

Publication title -

aip conference proceedings

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.177

H-Index - 75

eISSN - 1551-7616

pISSN - 0094-243X

DOI - 10.1063/1.1994613

Subject(s) - quantum dot , condensed matter physics , magnetic field , hyperfine structure , photoluminescence , spin polarization , excitation , polarization (electrochemistry) , circular polarization , relaxation (psychology) , physics , cadmium telluride photovoltaics , spin (aerodynamics) , electron , atomic physics , materials science , chemistry , optoelectronics , quantum mechanics , psychology , social psychology , thermodynamics

We have measured photoluminescence (PL) spectra and time-resolved PL in CdTe quantum dots (QDs) under the longitudinal magnetic field up to 10T. Circular polarization of PL increases with increasing magnetic field, while its linear polarization is absent under linearly polarized excitation. Time-resolved PL measurements clarified that this behavior is caused by the suppression of spin relaxation induced by the longitudinal magnetic field. We believe that this behavior is related to the hyperfine interaction of electron spin with magnetic momenta of lattice nuclei

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