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Our group members at Wigner ADMIL laboratory has succeeded manufacturing carbon antisite–vacancy colour centres in silcon carbide nanoparticles. These colour centres behave as single-photon emitters, and therefore may be used in the future in nanometrology and quantum informatics. The biocompatibiliy of SiC makes these defects ideal candidates for biosensing at the molecular level.

In an international cooperation with japanese and australian colleagues, we supported the establishment and identification of the carbon antisite–vacancy pair as a new kind of single-photon emitter in silicon carbide with theoretical work and computational simulation.

In the field of methodology development, our part-time group member, Viktor Ivády has constructed a DFT scheme combining hybrid exchange and DFT+U strategies. This machinery seems to be an efficient tool in DFT calculations involving solid-state defects with highly localized electronic orbitals, as its tests on two typical systems show.