Author/Authors :
Cheng، نويسنده , , Jun and Wu، نويسنده , , Yanwen and Xu، نويسنده , , Xiaodong and Sun، نويسنده , , Dong and Steel، نويسنده , , D.G. and Bracker، نويسنده , , A.S. and Gammon، نويسنده , , D. L. Yao، نويسنده , , Wang and Sham، نويسنده , , L.J.، نويسنده ,
Abstract :
Measurements of the electron spin relaxation rate ( T 1 ) in charged GaAs quantum dots are made using a new nonlinear optical phase-modulation spectroscopy technique. The measured results of T 1 as a function of magnetic field and temperature are best explained in terms of the spin relaxation by the phonon-assisted Dresselhaus spin–orbit scattering. T 1 approaches 34 μs at zero magnetic field at 4.5 K.
Keywords :
A. Quantum dots , D. Spin dynamics , E. Nonlinear spectroscopies , E. Phase modulation
