Spin splitting of X-related donor impurity states in an AlAs barrier

Details Spin splitting of X-related donor impurity states in an AlAs barrier Spin splitting of X-related donor impurity states in an AlAs barrier

2005-02-10

arxiv.org/abs/cond-mat/0502266v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevB.71.195320

We use magnetotunneling spectroscopy to observe the spin splitting of the ground state of an X-valley-related Si-donor impurity in an AlAs barrier. We determine the absolute magnitude of the effective Zeeman spin splitting factors of the impurity ground state to be g$_{I}$= 2.2 $\pm $ 0.1. We also investigate the spatial form of the electron wave function of the donor ground state, which is anisotropic in the growth plane.

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