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SUMMARY:SPIN DEFECTS IN HEXAGONAL BORON NITRIDE FOR SENSING APPLICATIONS
DTSTART:20260407T140000
DTEND:20260407T150000
DTSTAMP:20260526T040603Z
UID:adbad5afe5221ed2ded65a4405aa7c3546eb092377305193fdf70bff
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Vladimir Dyakonov holds the Chair of Experimental Physi
 cs on the Faculty of Physics and Astronomy of Julius-Maximilian University
  of Würzburg\, Germany since 2004. He studied physics at the University o
 f Leningrad and received his diploma degree in 1986. Since 1990\, he has b
 een a visiting researcher at the universities of Bayreuth (Germany)\, Antw
 erp (Belgium) and Linz (Austria). He finished his habilitation in experime
 ntal physics at the University of Oldenburg (Germany) in 2001. In 2007-200
 9 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 orga
 nic and hybrid photovoltaics\, organic light-emitting diodes and sensors. 
 He published ca. 230 peer-reviewed scientific papers and has h-index of 84
 . \n2D materials have emerged over the last decade as the new playground 
 for quantum photonics\ndevices. Among them\, hexagonal boron nitride (hBN)
  is an interesting candidate\, mainly because of its\ncrystallographic com
 patibility with different 2D materials\, but also because of its ability t
 o harbour optically\nactive defects that generate single photons. The nega
 tively charged boron vacancy was the first intrinsic\noptically addressabl
 e spin defect in hBN reported in 2020\, allowing coherent control at room 
 temperature.\nAlthough other types of spin centres have been found in this
  material since then\, this spin-1 colour centre\nremains the only one wit
 h a clearly elucidated structure. Practical applications of hBN spin centr
 es as\nintrinsic magnetic field\, temperature\, pressure\, etc. sensors in
  van der Waals heterostructures are hence\nenvisioned. To further boost th
 e quantum sensing applications of this spin defect in hBN\, we are current
 ly\ninvestigating the dynamics of the intermediate state\, also known as t
 he metastable state\, because it is likely\nto trap electrons for a certai
 n time\, which affects the subsequent sensing protocol when the pulsed\nma
 gnetic resonance experiment is designed.
LOCATION:BM 5202 https://plan.epfl.ch/?room==BM%205202
STATUS:CONFIRMED
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