| Saturday 4 May 2024 | |
| Events for day: Wednesday 27 April 2022 |
| 14:00 - 16:00 Combinatorics and Computing Weekly Seminar A Catlin-type Theorem for G-free Coloring of Graphs School MATHEMATICS Let G be a connected graph of order at least 2. A G-free k-coloring of a graph H is a partition of the vertex set of H into V1, . . . , Vk such that H[Vi], the subgraph induced on Vi, does not contain any subgraph isomorphic to G. Catlin in 1979 showed that if H is neither an odd cycle nor a complete graph with maximum degree ∆(H), then H has a vertex ∆(H)- coloring such that one of the color classes is a maximum independent set. As a generalization of Catlin?s Theorem, under some assumptions we show that a graph H has a G-free d ∆(H) δ(G) ecoloring for which one of the color classes is a maximum G-free subset o ... 14:00 - 15:00 Weekly Seminar Condensed Matter and Statistical Physics Group Electron transport and interface effects in NbS2//WSe2 lateral and vertical heterostructures School PHYSICS Abstract: Research on two-dimensional (2D) materials has drawn enormous attention since the pioneering studies of the novel properties of graphene. Among 2D materials, the interest in the transition metal dichalcogenide (TMD2) family has grown exponentially because of their outstanding electronic and optical properties. In this talk, we investigate transport in NbS2//WSe2 lateral heterostructure (LH) and vertical heterostructure (VH). Based on DFT simulations using Quantum Espresso suite of codes and an electrostatic potential analysis, we unveil electron transmission through the scattering region and study th ... |