Engineering quantum-coherent defects: The role of substrate miscut in chemical vapor deposition diamond growth
- Univ. of California, Santa Barbara, CA (United States). Dept. of Physics; Univ. of California, Santa Barbara, CA (United States)
- Stanford Univ., CA (United States). Dept. of Materials Science and Engineering
- Univ. of California, Santa Barbara, CA (United States). Dept. of Physics. Materials Department
- Univ. of California, Santa Barbara, CA (United States). Dept. of Physics
The engineering of defects in diamond, particularly nitrogen-vacancy (NV) centers, is important for many applications in quantum science. A materials science approach based on chemical vapor deposition (CVD) growth of diamond and in situ nitrogen doping is a promising path toward tuning and optimizing the desired properties of the embedded defects. Herein, with the coherence of the embedded defects in mind, we explore the effects of substrate miscut on the diamond growth rate, nitrogen density, and hillock defect density, and we report an optimal angle range for the purposes of engineering coherent ensembles of NV centers in diamond according to our growth parameters. We provide a model that quantitatively describes hillock nucleation in the step-flow regime of CVD growth, shedding insight on the physics of hillock formation. We also report significantly enhanced incorporation of nitrogen at hillock defects, opening the possibility for templating hillock-defect-localized NV center ensembles for quantum applications.
- Research Organization:
- Univ. of California, Santa Barbara, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); Natural Sciences and Engineering Research Council of Canada (NSERC)
- Grant/Contract Number:
- SC0019241
- OSTI ID:
- 1852955
- Alternate ID(s):
- OSTI ID: 1712813
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 19 Vol. 117; ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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