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SKM 2021 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 10: Focus Session: Highlights of Materials Science and Applied Physics I (joint session DS/HL)

HL 10.4: Topical Talk

Tuesday, September 28, 2021, 15:15–15:45, H3

Optical and vibrational properties of layered 2D materials — •Janina Maultzsch — Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany

Atomically thin layered crystals have received great attention due to their fascinating physical properties. By deterministic stacking and twisting of these two-dimensional (2D) materials, an almost unlimited variety of material’s combinations and resulting physical properties can be achieved. The properties can be further modified by chemical functionalization of the surface. In this talk I will present theoretical predictions on novel 2D antimony oxide structures which show tunable electronic properties depending on the oxygen content. Second, based on recent experiments on chemically functionalized MoS2 layers, we present transitions from the 2H to the 1T’ phase along with the characteristic phonon modes of the 1T’ phase of MoS2.

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