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

研究成果: Article査読

65 被引用数 (Scopus)

抄録

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.

本文言語English
論文番号121201
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
82
12
DOI
出版ステータスPublished - 2010 9 2

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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