Electron spin coherence of phosphorus donors in silicon: Effect of environmental nuclei

Eisuke Abe; Alexei M. Tyryshkin; Shinichi Tojo; John J.L. Morton; Wayne M. Witzel; Akira Fujimoto; Joel W. Ager; Eugene E. Haller; Junichi Isoya; Stephen A. Lyon; Mike L.W. Thewalt; Kohei M. Itoh

doi:10.1103/PhysRevB.82.121201

Electron spin coherence of phosphorus donors in silicon: Effect of environmental nuclei

Eisuke Abe, Alexei M. Tyryshkin, Shinichi Tojo, John J.L. Morton, Wayne M. Witzel, Akira Fujimoto, Joel W. Ager, Eugene E. Haller, Junichi Isoya, Stephen A. Lyon, Mike L.W. Thewalt, Kohei M. Itoh

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Abstract

We report electron paramagnetic resonance (EPR) experiments of phosphorus donors in isotopically controlled silicon single crystals. By varying the concentration of the ²⁹Si isotope, f, from 0.075% to 99.2%, we systematically study the effect of the environmental nuclear spins on the donor-electron spin. We find excellent agreement between experiment and theory for decoherence times due to nuclear-induced spectral diffusion, clarifying that the nuclear-induced decoherence is dominant in the range of f studied. We also observe that the EPR linewidth shows a transition from the square-root dependence to the linear dependence on f, in agreement with theoretical predictions.

Original language	English
Article number	121201
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	82
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevB.82.121201
Publication status	Published - 2010 Sept 2

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.82.121201

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Abe, E., Tyryshkin, A. M., Tojo, S., Morton, J. J. L., Witzel, W. M., Fujimoto, A., Ager, J. W., Haller, E. E., Isoya, J., Lyon, S. A., Thewalt, M. L. W., & Itoh, K. M. (2010). Electron spin coherence of phosphorus donors in silicon: Effect of environmental nuclei. Physical Review B - Condensed Matter and Materials Physics, 82(12), [121201]. https://doi.org/10.1103/PhysRevB.82.121201

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abstract = "We report electron paramagnetic resonance (EPR) experiments of phosphorus donors in isotopically controlled silicon single crystals. By varying the concentration of the 29Si isotope, f, from 0.075% to 99.2%, we systematically study the effect of the environmental nuclear spins on the donor-electron spin. We find excellent agreement between experiment and theory for decoherence times due to nuclear-induced spectral diffusion, clarifying that the nuclear-induced decoherence is dominant in the range of f studied. We also observe that the EPR linewidth shows a transition from the square-root dependence to the linear dependence on f, in agreement with theoretical predictions.",

author = "Eisuke Abe and Tyryshkin, {Alexei M.} and Shinichi Tojo and Morton, {John J.L.} and Witzel, {Wayne M.} and Akira Fujimoto and Ager, {Joel W.} and Haller, {Eugene E.} and Junichi Isoya and Lyon, {Stephen A.} and Thewalt, {Mike L.W.} and Itoh, {Kohei M.}",

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doi = "10.1103/PhysRevB.82.121201",

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T2 - Effect of environmental nuclei

AU - Abe, Eisuke

AU - Tyryshkin, Alexei M.

AU - Tojo, Shinichi

AU - Morton, John J.L.

AU - Witzel, Wayne M.

AU - Fujimoto, Akira

AU - Ager, Joel W.

AU - Haller, Eugene E.

AU - Isoya, Junichi

AU - Lyon, Stephen A.

AU - Thewalt, Mike L.W.

AU - Itoh, Kohei M.

PY - 2010/9/2

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AB - We report electron paramagnetic resonance (EPR) experiments of phosphorus donors in isotopically controlled silicon single crystals. By varying the concentration of the 29Si isotope, f, from 0.075% to 99.2%, we systematically study the effect of the environmental nuclear spins on the donor-electron spin. We find excellent agreement between experiment and theory for decoherence times due to nuclear-induced spectral diffusion, clarifying that the nuclear-induced decoherence is dominant in the range of f studied. We also observe that the EPR linewidth shows a transition from the square-root dependence to the linear dependence on f, in agreement with theoretical predictions.

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Electron spin coherence of phosphorus donors in silicon: Effect of environmental nuclei

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