Theory of Hyperfine Interactions and Electrically Detected Magnetic Resonance (EDMR) for Phosphorus-Doped Silicon

ORAL

Abstract

EDMR is a useful tool to sensitively study a spin pair’s local environment as well as spin-dependent recombination. Theoretical treatments have focused on resonances originating from differences between g-factors of two recombining spins [1]. Recently hyperfine interactions were included but in a classical manner [2]. We present a theory of EDMR where transitions take place via differences in g-factor or hyperfine interactions. The stochastic Liouville formalism is suited to account for hyperfine interactions involving multiple nuclei where each nuclear spin is a quantum spin. For a single spin-1/2 nucleus, expressions for resonances at any field are determined and agree with most measured resonances in phosphorous-doped silicon [3]. Comparisons between the model and observations lead to new understandings of the defect-induced recombination pathways.


[1] Limes et al., Phys. Rev. B 87, 165204 (2013)
[2] Mkhitaryan et al., Phys. Rev. B 97, 035402 (2018)
[3] Morishita et al., Phys. Rev. B 80, 205206 (2009)

–

Presenters

  • Nicholas Harmon

    Optical Science and Technology Center and Department of Physics and Astronomy, University of Iowa, University of Iowa, Physics and Astronomy, University of Iowa

Authors

  • Nicholas Harmon

    Optical Science and Technology Center and Department of Physics and Astronomy, University of Iowa, University of Iowa, Physics and Astronomy, University of Iowa

  • Michael Flatté

    Optical Science and Technology Center and Department of Physics and Astronomy, University of Iowa, Department of Physics and Astronomy and Optical Science and Technology Center, University of Iowa, Physics and Astronomy, University of Iowa, Iowa City, University of Iowa, Department of Physics and Astronomy, University of Iowa, Physics and Astronomy, University of Iowa