NV-center distribution and ODMR spectra in two types of natural diamonds

Abstract

Two types of natural diamonds were investigated by means of PL scanning and ODMR. One was irradiated by neutrons to create NV-centers and the second wasn't specifically treated. The pattern of NV-center distribution was found such that NV-centers in untreated diamond are localized in a special direction, supposedly sliding planes. Furthermore, the spin Hamiltonian parameters E and D of NV-center ground state, calculated by ODMR spectra in untreated diamond, depend on the surface point.