Presenter: Prof.Udo Schwingenschlogl
MaterialsScience & Engineering at King Adbullah University of
Science andTechnology (KAUST)
Topic: Substrate effects on silicene and how to exploitthem
Time: 01:00p.m., October 19th (Thursday)
Location: Conference Room 308, BLDG 910-3F
Abstract
Siliceneis the Si analogue of graphene with the same honeycomb structure and lineardispersions of the π and π* bands at the K point of the Brillouin zone. It ispredicted to realize a buckled structure, due to sp2-sp3hybridization, and is compatible with the current Si-based nano-electronics.Silicene yet has not been achieved by mechanical exfoliation but can bedeposited on metallic substrates such as Ag(111), Ir(111), and ZrB2(0001).Regrettably, strong interaction with these substrates destroys the Diracphysics. Layered materials such as MgBr2(0001), MoX2, andGaX2 (X = S, Se, and Te), on the other hand, might preserve thecharacteristic electronic features. The effects of different substrates onsilicene will be compared and evaluated with respect to technologicalrequirements.
Biography
UdoSchwingenschlogl is a Professor of Materials Science & Engineering at KingAbdullah University of Science and Technology (KAUST). His research interestsin condensed matter physics and first-principles materials modeling focus ontwo-dimensional materials, interface and defect physics, correlated materials,thermoelectric materials, metal-ion batteries, nanoparticles, and quantum transport.
Contact: Prof. Mario Lanza
Editor: Juan Yang
