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X-ORIGINAL-URL:https://www.lps.u-psud.fr/
X-WR-CALNAME:Laboratoire de physique des Solides
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BEGIN:VEVENT
CLASS:PUBLIC
DTSTART;TZID=Europe/Paris:20231108T110000
DTEND;TZID=Europe/Paris:20231108T130000
DTSTAMP:20231031T090300
UID:MEC-1d3b7f1f8a7625f8d5e700dcf0d9ae68@lps.u-psud.fr
CREATED:20231031
LAST-MODIFIED:20231031
PRIORITY:5
TRANSP:OPAQUE
SUMMARY:Spectroscopy of a single-carrier bilayer graphene quantum dot from time-resolved charge detection
DESCRIPTION:\nHadrien Duprez (ETH Zurich)\n\n\n\nWe measured the spectrum of a single-carrier bilayer graphene quantum dot as a function of both parallel and perpendicular magnetic field, using a time-resolved charge detection technique that gives access to individual tunnel events. Thanks to our energy resolution of 4 µeV, we could distinguish all four of the dot’s energy levels, in particular in the range of magnetic field where the first and second excited states cross (B⟂ ≲ 100 mT). We thereby experimentally establish the, hitherto simply extrapolated, single-charge carrier spectrum picture and provide a new upper bound for the inter-valley mixing, equal to our energy resolution.\n
URL:https://www.lps.u-psud.fr/events/spectroscopy-of-a-single-carrier-bilayer-graphene-quantum-dot-from-time-resolved-charge-detection/
CATEGORIES:Séminaire Matière Quantique (SMQ)
LOCATION:Moyen amphi (LPS) + ONLINE (Zoom)
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