Multilayer Two-Dimensional Water Structure Confined in MoS2

Melting of multilayer colloidal crystals confined between two walls.

Video microscopy is employed to study the melting behaviors of multilayer colloidal crystals composed of diameter-tunable microgel spheres confined between two walls. We systematically explore film thickness effects on the melting process and on the phase behaviors of single crystal and polycrystalline films. Thick films (>4 layers) are observed to melt heterogeneously, while thin films (≤4 lay...

Screening and interlayer coupling in multilayer MoS2

From point to extended defects in two-dimensional MoS2: Evolution of atomic structure under electron irradiation

Hannu-Pekka Komsa,1 Simon Kurasch,2 Ossi Lehtinen,2 Ute Kaiser,2 and Arkady V. Krasheninnikov1,3 1Department of Physics, University of Helsinki, P.O. Box 43, 00014 Helsinki, Finland 2Central Facility for Electron Microscopy, Group of Electron Microscopy of Materials Science, University of Ulm, 89081 Ulm, Germany 3Department of Applied Physics, Aalto University, P.O. Box 11100, 00076 Aalto, Finl...

Confined catalysis under two-dimensional materials.

Confined microenvironments formed in heterogeneous catalysts have recently been recognized as equally important as catalytically active sites. Understanding the fundamentals of confined catalysis has become an important topic in heterogeneous catalysis. Well-defined 2D space between a catalyst surface and a 2D material overlayer provides an ideal microenvironment to explore the confined catalys...

Confined two-dimensional fermions at finite density.

We introduce the chemical potential in a system of two-dimensional massless fermions, confined to a finite region, by imposing twisted boundary conditions in the Euclidean time direction. We explore in this simple model the application of functional techniques which could be used in more complicated situations.