Defect engineering in fabrication of NV centers by nitrogen ion implantation

Yamamoto, Takashi; Onoda, Shinobu; Oshima, Takeshi; Isoya, Junichi*; Teraji, Tokuyuki*; Taniguchi, Takashi*; Watanabe, Kenji*; Koizumi, Satoshi*; Umeda, Takahide*; Jelezko, F.*; et al.

no journal, , 

We have measured optically-detected magnetic resonance (ODMR) of single spin of NV center in a high purity C enriched CVD diamond created by N ion implantation. Detailed ODMR measurements of individual NV centers revealed that both NV and NV were created by the N implantation with a ratio of [NV]/[NV] 1 and a high conversion yield of 70-100% for [NV+NV]. The spin coherence time of was measured to be 2 ms at room temperature, which is the longest ever recorded in implanted samples. This result is expected to have a significant impact on realizing NV based applications.