Berlin 2018 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 13: Poster Session I

HL 13.1: Poster

Montag, 12. März 2018, 17:30–19:30, Poster B

Transmission Electron Diffraction on a really free-standing heterostructure and analysis of the resulting Moiré pattern — •Marlene Adrian, Arne Senftleben, Silvio Morgenstern, and Thomas Baumert — University of Kassel, Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), D - 34132 Kassel

The combination of various 2D layered materials in multilayer heterostructures arises great interest in the current science. Due to the large variety of electronic properties of the group of 2D layered materials the combination opens a new pathway towards ultrasmall electronic devices.

In this contribution we present a full mathematical description of multilayer heterostructure samples and their diffraction images including a proposal of a consistent assignment of the superstructure diffraction spots. A 27 nm thick MoS2-graphite heterostructure was produced and fully analysed with the methods presented. Additionally, the ultrafast lattice dynamics after optical excitation of the sample will be discussed.