SPIN DEFECTS IN HEXAGONAL BORON NITRIDE FOR SENSING APPLICATIONS
Event details
| Date | 07.04.2026 |
| Hour | 14:00 › 15:00 |
| Speaker | Prof. Vladimir Dyakonov holds the Chair of Experimental Physics on the Faculty of Physics and Astronomy of Julius-Maximilian University of Würzburg, Germany since 2004. He studied physics at the University of Leningrad and received his diploma degree in 1986. Since 1990, he has been a visiting researcher at the universities of Bayreuth (Germany), Antwerp (Belgium) and Linz (Austria). He finished his habilitation in experimental physics at the University of Oldenburg (Germany) in 2001. In 2007-2009 he was the Vice-dean and in 2013-2015 the Dean of the Faculty of Physics and Astronomy at the University of Würzburg. Dyakonov’s main research interests are in the fields of semiconductor spectroscopy, thin-film organic and hybrid photovoltaics, organic light-emitting diodes and sensors. He published ca. 230 peer-reviewed scientific papers and has h-index of 84. |
| Location | |
| Category | Conferences - Seminars |
| Event Language | English |
2D materials have emerged over the last decade as the new playground for quantum photonics
devices. Among them, hexagonal boron nitride (hBN) is an interesting candidate, mainly because of its
crystallographic compatibility with different 2D materials, but also because of its ability to harbour optically
active defects that generate single photons. The negatively charged boron vacancy was the first intrinsic
optically addressable spin defect in hBN reported in 2020, allowing coherent control at room temperature.
Although other types of spin centres have been found in this material since then, this spin-1 colour centre
remains the only one with a clearly elucidated structure. Practical applications of hBN spin centres as
intrinsic magnetic field, temperature, pressure, etc. sensors in van der Waals heterostructures are hence
envisioned. To further boost the quantum sensing applications of this spin defect in hBN, we are currently
investigating the dynamics of the intermediate state, also known as the metastable state, because it is likely
to trap electrons for a certain time, which affects the subsequent sensing protocol when the pulsed
magnetic resonance experiment is designed.
Practical information
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