2005/12/16 by Eisuke Abe, Alexei M. Tyryshkin, Akira Fujimoto +10 · 96 citations
Chemistry · Engineering · Physics and Astronomy · #Atomic physics #Chemistry #Condensed matter physics #Crystal (programming language) #Doping #Electron #Electron paramagnetic resonance #Laser linewidth #Magnetic field #Materials science #Nuclear magnetic resonance #Nuclear physics #Optics #Optoelectronics #Physics #Quantum and electron transport phenomena #Semiconductor Quantum Structures and Devices #Semiconductor materials and devices #Silicon #Spin (aerodynamics) #Spins #cond-mat.mtrl-sci #quant-ph
paper · pdf · doi:10.1103/physrevb.82.121201
published in Physical Review B 82(12) (American Physical Society) · 5 pages, 4 figures
arxiv created 2005/12/16 · openalex publication_date 2010/09/02 · arxiv updated 2010/11/16 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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.