Publications by authors named "Jonathan P Goss"
Atomic-scale defects can control the exploitable optoelectronic performance of crystalline materials, and several point defects in diamond are emerging functional components for a range of quantum technologies. Nitrogen and hydrogen are common impurities incorporated into diamond, and there is a family of defects that includes both. The NVH defect is a lattice vacancy where three nearest neighbor carbon atoms are replaced with nitrogen atoms and a hydrogen is bonded to the remaining carbon.
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- Nitrogen is a common element in both natural and lab-grown diamonds, affecting their properties based on the type and quantity of nitrogen defects present.
- Recent advancements in diamond synthesis methods, specifically high pressure high temperature (HPHT) and chemical vapor deposition (CVD), allow for precise control over nitrogen incorporation and subsequent processing of diamonds for desired characteristics.
- The study of nitrogen-related defects, especially the negatively charged nitrogen-vacancy (NV) defect, is particularly promising, as it opens up new applications in fields like quantum technologies, nanoscale magnetometry, and biosensing.
Calculated strain response of vibrational modes for H-containing point defects in diamond.
Phys Chem Chem Phys
June 2011
The low mass of hydrogen leads to highly localised, high-frequency vibrational modes associated with H-containing defects in crystalline materials. In addition to vibrational spectroscopy, the presence of hydrogen in diamond has been identified from several experimental techniques. In particular, paramagnetic resonance shows that H is often associated with lattice vacancies, but in many cases the microscopic structure of the defects remains to be determined.
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