Charge-state control of ensemble of nitrogen vacancy centers by n–i–n diamond junctions
At a Glance
Section titled “At a Glance”| Metadata | Details |
|---|---|
| Publication Date | 2018-02-20 |
| Journal | Applied Physics Express |
| Authors | M. Shimizu, Toshiharu Makino, Takayuki Iwasaki, Kosuke Tahara, Hiromitsu Kato |
| Institutions | Tokyo University of Science, National Institute of Advanced Industrial Science and Technology |
| Citations | 10 |
Abstract
Section titled “Abstract”We fabricated n-type-intrinsic-n-type (n-i-n) diamond junctions to stabilize negatively charged nitrogen vacancy (NV−) centers. An ensemble of NV centers was generated in a high-purity intrinsic diamond in order to maintain the spin coherence time. The Fermi-energy of the i-layers was controlled by band bending at the two n-i junctions. We confirmed that the NV centers can be modulated toward NV− centers by decreasing the width of the i-layers between adjacent n-layers. The spin coherence time for the NV− centers was maintained even for narrow i-layers.