Relaxation of Shallow Donor Electron Spin due to Interaction with Nuclear Spin Bath

Semion Saykin; Dima Mozyrsky; Vladimir Privman

doi:10.1021/nl0255552

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Relaxation of Shallow Donor Electron Spin due to Interaction with Nuclear Spin Bath

Semion Saykin·Dima Mozyrsky·Vladimir Privman

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Abstract

We study the low-temperature dynamics of a shallow donor, e.g., $^{31}$P, impurity electron spin in silicon, interacting with the bath of nuclear spins of the $^{29}$Si isotope. For small applied magnetic fields, the electron spin relaxation is controlled by the steady state distribution of the nuclear spins. We calculate the relaxation times $T_1$ and $T_2$ as functions of the external magnetic field, and conclude that nuclear spins play an important role in the donor electron spin decoherence in Si:P at low magnetic fields.

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Semion Saykin, Dima Mozyrsky, Vladimir Privman. 2002-03-18. Relaxation of Shallow Donor Electron Spin due to Interaction with Nuclear Spin Bath. https://doi.org/10.1021/nl0255552

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