Optimal conditions forNV−center formation in type-1b diamond studied using photoluminescence and positron annihilation spectroscopies

  title={Optimal conditions forNV−center formation in type-1b diamond studied using photoluminescence and positron annihilation spectroscopies},
  author={Jacques Botsoa and Thierry Sauvage and M. Adam and Pierre Desgardin and Elisa Leoni and Blandine Courtois and Franccois Treussart and Marie France Barthe},
  journal={Physical Review B},
We studied the parameters to optimize the production of negatively-charged nitrogen-vacancy color centers (NV-) in type~1b single crystal diamond using proton irradiation followed by thermal annealing under vacuum. Several samples were treated under different irradiation and annealing conditions and characterized by slow positron beam Doppler-broadening and photoluminescence (PL) spectroscopies. At high proton fluences another complex vacancy defect appears limiting the formation of NV… 

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