Femtosecond spectral studies of electron spin injection and relaxation in AlGaAs / GaAs MQW | Zendy

Fengwei Sun | Zendy; Li Deng | Zendy; Qian Shou | Zendy; Luning Liu | Zendy; Wen Jin-Hui | Zendy; Lai Tian-Shu | Zendy; Lin Wei-Zhu | Zendy

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Femtosecond spectral studies of electron spin injection and relaxation in AlGaAs / GaAs MQW

Author(s) -

Fengwei Sun,

Li Deng,

Qian Shou,

Luning Liu,

Wen Jin-Hui,

Lai Tian-Shu,

Lin Wei-Zhu

Publication year - 2004

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.53.3196

Subject(s) - relaxation (psychology) , electron , femtosecond , condensed matter physics , materials science , saturation (graph theory) , spin (aerodynamics) , atomic physics , absorption (acoustics) , physics , optics , laser , psychology , social psychology , mathematics , quantum mechanics , combinatorics , thermodynamics , composite material

The electron spin injection and relaxation in AlGaAs/GaAs multi quantum well(MQW) are studied with f emtosecond saturation absorption measurements. A electron spin relaxation time of 80±10ps is deduced. The relaxation mechanism is attributed to the randomizat ion of the local magnetic field arising from the spinorbit coupling.

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