Novel Ultra Localized and Dense Nitrogen Delta-Doping in Diamond for Advanced Quantum Sensing
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2020-05-01 |
| Journal | Nano Letters |
| Authors | Tzach Jaffe, Mohammed Attrash, Mohan Kumar Kuntumalla, Roza Akhvlediani, Shaul Michaelson |
| Institutions | University of Kassel, Technion ā Israel Institute of Technology |
| Citations | 29 |
Abstract
Section titled āAbstractāWe introduce and demonstrate a new approach for nitrogen-vacancy (NV) patterning in diamond, achieving a deterministic, nanometer-thin, and dense delta-doped layer of negatively charged NV centers in diamond. We employed a pure nitridation stage using microwave plasma and a subsequent <i>in situ</i> diamond overgrowth. We present the highest reported nitrogen concentration in a delta-doped layer (1.8 Ć 10<sup>20</sup> cm<sup>-3</sup>) while maintaining the pristine diamond crystal quality. This result combined with the large optically detected magnetic resonance contrast can pave the way toward highly sensitive NV-based magnetometers. We further employed this delta-doping technique on high-quality fabricated diamond nanostructures for realizing a topographic NV patterning in order to enhance the sensing and hyperpolarization capabilities of NV-based devices.