Effects of Mechanical Strain on the Structure and Properties of 2D Materials and their Heterostructures (C02)

• Subject Area: Theoretical Chemistry: Molecules, Materials, Surfaces ; Theoretical Condensed Matter Physics
• Term: from 2020 to 2024
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 417590517

Brumme’s project will study the electronic, optical, and transport properties of 2DMs and heterostructures under the influence of strain fields using DFT-based methods. He will focus on the influence of strain on mono-and multilayer systems. In multilayer samples, different strain states within the single layers can be used to break certain symmetries such as the inversion symmetry in bilayer 2H-WSe2. This will enable the switching between different transport channels and/or allow for the tuning of the valley degree of freedom. Furthermore, strain-depending vibrational properties and topological phase transitions will be addressed in this project.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1415: Chemistry of Synthetic Two-Dimensional Materials
• Applicant Institution: Technische Universität Dresden
• Project Head: Dr. Thomas Brumme