Spin-active single photon emitters in hexagonal boron nitride from carbon-based defects

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dc.contributor.authorPinilla, Fernanda
dc.contributor.authorVasquez, Nicolas
dc.contributor.authorChacon, Ignacio
dc.contributor.authorMaze, Jeronimo R.
dc.contributor.authorCardenas, Carlos
dc.contributor.authorMunoz, Francisco
dc.date.accessioned2025-01-20T20:07:52Z
dc.date.available2025-01-20T20:07:52Z
dc.date.issued2023
dc.description.abstractMost single photon emitters in hexagonal boron nitride have been identified as carbon substitutional defects, forming donor-acceptor systems. Unlike the most studied bulk emitters (i.e. color centers in diamond), these defects have no net spin, or have a single unpaired spin. By means of density functional calculations, we show that two non-adjacent carbon substitutional defects of the same type (i.e. C-B-C-B, and C-N-C-N), can have a triplet groundstate. In particular, one of such defects has a zero phonon line energy of 2.5 eV, and its triplet state is nearly 0.5 eV more stable than its singlet. The mechanism behind the destabilization of the singlet state is related to a larger electrostatic repulsion of a symmetric wave function in a charged lattice.
dc.fuente.origenWOS
dc.identifier.doi10.1088/1402-4896/aceb1d
dc.identifier.eissn1402-4896
dc.identifier.issn0031-8949
dc.identifier.urihttps://doi.org/10.1088/1402-4896/aceb1d
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/91854
dc.identifier.wosidWOS:001043702400001
dc.issue.numero9
dc.language.isoen
dc.revistaPhysica scripta
dc.rightsacceso restringido
dc.subjecthexagonal boron nitride
dc.subjectspin defect
dc.subjectsingle-photon source
dc.titleSpin-active single photon emitters in hexagonal boron nitride from carbon-based defects
dc.typeartículo
dc.volumen98
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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