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Charge dynamics at nitrogen impurities and nitrogen-vacancy centers in diamond
Chandan Kumar Vishwakarma, J. K. Nangoi, Mark E. Turiansky +1
The nitrogen-vacancy (NV) center in diamond is the prototype quantum defect that enables a variety of diamond-based quantum technologies. However, charge-state instability and spec…
A CN complex as an alternative to the T center in Si
J. K. Nangoi, M. E. Turiansky, C. G. Van de Walle
We present a first-principles study of a carbon-nitrogen (CN) impurity complex in silicon as an isoelectronic alternative to the T center [(CCH)]. The latter has been…
Ab initio study of the crystal and electronic structure of mono- and bi-alkali antimonides: Stability, Goldschmidt-like tolerance factors, and optical properties
J. K. Nangoi, M. Gaowei, A. Galdi +4
Mono- and bi-alkali antimonides, XYSb (X and Y from Group I), are promising for next-generation electron emitters due to their capability of producing high-quality electron bea…