Transient spectral dependence of photoinduced magneto-optical Faraday effect in CdTe quantum dots | Zendy

Hong Ma | Zendy; Zuanming Jin | Zendy; Zhengbing Zhang | Zendy; Guohong Ma | Zendy; Lianhui Wang | Zendy

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Transient spectral dependence of photoinduced magneto-optical Faraday effect in CdTe quantum dots

Author(s) -

Hong Ma,

Zuanming Jin,

Zhengbing Zhang,

Guohong Ma,

Lianhui Wang

Publication year - 2012

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.3679403

Subject(s) - faraday effect , diamagnetism , cadmium telluride photovoltaics , verdet constant , condensed matter physics , quantum dot , exciton , magnetic field , faraday cage , paramagnetism , relaxation (psychology) , materials science , physics , optoelectronics , psychology , social psychology , quantum mechanics

The time-resolved photo-induced magneto-optical response of water soluble cadmium telluride (CdTe) colloidal quantum dots (QDs) is studied in the spectral range across the first exciton (1S3/21Se) transition at room temperature without external magnetic field. Spectral dependence of the Faraday ellipticity reaches an extremum near the first exciton transition energy, while the Faraday rotation shows a sign reversal, which indicates that the spectral dependence of photo-induced Faraday effect evolves from a diamagnetic to a paramagnetic behavior during the exciton spin relaxation process in CdTe QDs

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