Millisecond spin-flip times of donor-bound electrons in GaAs

Kai-Mei C. Fu; Wenzheng Yeo; Susan Clark; Charles Santori; Colin Stanley; M. C. Holland; Yoshihisa Yamamoto

doi:10.1103/PhysRevB.74.121304

Millisecond spin-flip times of donor-bound electrons in GaAs

Mesoscale and Nanoscale Physics 2009-11-11 v1

Authors: Kai-Mei C. Fu , Wenzheng Yeo , Susan Clark , Charles Santori , Colin Stanley , M. C. Holland , Yoshihisa Yamamoto

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Abstract

We observe millisecond spin-flip relaxation times of donor-bound electrons in high-purity n-GaAs . This is three orders of magnitude larger than previously reported lifetimes in n-GaAs . Spin-flip times are measured as a function of magnetic field and exhibit a strong power-law dependence for fields greater than 4 T . This result is in qualitative agreement with previously reported theory and measurements of electrons in quantum dots.

Keywords

spin-flip relaxation donor-bound electrons GaAs magnetic field dependence power-law behavior quantum dots

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@article{arxiv.cond-mat/0610524,
  title  = {Millisecond spin-flip times of donor-bound electrons in GaAs},
  author = {Kai-Mei C. Fu and Wenzheng Yeo and Susan Clark and Charles Santori and Colin Stanley and M. C. Holland and Yoshihisa Yamamoto},
  journal= {arXiv preprint arXiv:cond-mat/0610524},
  year   = {2009}
}

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4 pages, 4 figures

Millisecond spin-flip times of donor-bound electrons in GaAs

Abstract

Keywords

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