Photoionization of negatively charged NV centers in diamond: Theory and <i>ab initio</i> calculations
Lukas Razinkovas, M. Maciaszek, Friedemann Reinhard, Marcus W. Doherty, Audrius Alkauskas
Abstract
A nitrogen-vacancy center in diamond is a defect that has become a key platform for testing and eventually implementing various quantum technologies. During optical illumination, the center can change its charge state via a photoionization process. In this work, the authors present $a\phantom{\rule{0}{0ex}}b$ $i\phantom{\rule{0}{0ex}}n\phantom{\rule{0}{0ex}}i\phantom{\rule{0}{0ex}}t\phantom{\rule{0}{0ex}}i\phantom{\rule{0}{0ex}}o$ calculations of photoionization thresholds and cross sections of the nitrogen-vacancy center. The results explain several puzzling experimental findings.
Topics & Concepts
PhotoionizationDiamondAb initioAtomic physicsAb initio quantum chemistry methodsMaterials scienceMolecular physicsPhysicsIonIonizationQuantum mechanicsMoleculeComposite materialDiamond and Carbon-based Materials ResearchIon-surface interactions and analysisForce Microscopy Techniques and Applications