BEGIN:VCALENDAR METHOD:PUBLISH PRODID:www-physics-nat-fau-eu//Events//EN VERSION:2.0 BEGIN:VEVENT SUMMARY:Promotionsvortrag Physik: Proximity effects in intercalated ep itaxial graphene on SiC: From charge neutrality\, inter-layer Pb bands \, and spin textures to Tb-induced doping beyond van Hove filling UID:040000008200E00074C5B7101A82E0080000000080CE6C666E13DD010000000000 00000010000000162F2A31C90BD443BF85C506E05FD0F2 DESCRIPTION:Ankündigung des Promotionsvortrags von: Frau Bharti Matta Intercalation of epitaxial graphene on silicon carbide (SiC) is a rob ust approach for modifying gra-phene’\;s properties and stabilizi ng two-dimensional (2D) forms of elements at the graphene/SiC interfac e. Among the various elements explored as intercalants\, Lead (Pb) has attracted particular interest due to its superconducting nature and s trong intrinsic spin-orbit coupling (SOC)\, making it an excellent can didate for inducing similar proximity effects in graphene. In my talk\ , I’\;ll present a detailed investigation of the electronic struc ture of Pb-intercalated quasi-freestanding monolayer graphene on SiC u sing angle-resolved photoelectron spectroscopy (ARP-ES). The graphene π bands show near charge-neutrality\, involving a combined charge tra nsfer from both the interlayer Pb and SiC. The Pb-derived bands exhibi t a metallic nature with a (1×1) registry with respect to SiC\, corro borated by ARPES measurements in the repeated Brillouin zone of Pb. Li ght polarization-dependent ARPES measurements reveal a predominantly o ut-of-plane orbital character for the Pb bands\, suggesting the possib ility of interactions between the pz orbitals of the interlayer Pb and graphene\, potentially contributing to proximity effects in graphene. Density functional theory calculations for a (1×1) Pb monolayer on S iC qualitatively corroborate these ob-servations. Motivated by the pro spect of SOC-driven effects\, spin-resolved ARPES measurements were pe r-formed. These measurements reveal pronounced spin polarization in th e Pb interlayer\, along with a tangential spin texture in the momentum space. Notably\, the graphene π bands also exhibit measurable spin p olarization\, which may be attributed to proximity-induced Rashba-type spin split-ting. (Vortrag auf Englisch) Dem Vortrag schließt sich ei ne Diskussion von 15 Minuten an. Vortrag und Diskussion sind öffentli ch. Diesen Verfahrensteilen folgt ein nicht öffentliches Ri DTSTART:20260722T080000Z DTEND:20260722T093000Z LOCATION:HF - Hörsaal Physikum\, Biologikum\, Staudtstr. 5\, Erlangen DTSTAMP:20260715T142502Z END:VEVENT END:VCALENDAR