As part of the seminar series organized by the Center for Solid State Physics and New Materials at the Institute of Physics Belgrade, a lecture titled “Symmetry-based Explanation of Dispersions in Two-Dimensional Materials” was held on Wednesday, November 5, 2025, by Dr. Vladimir Damljanović.

Two-dimensional (2D) materials are systems in which atomic nuclei are periodically arranged in two spatial directions and finite in the third, orthogonal one. Examples include graphene, silicene, and transition metal dichalcogenides. Each 2D material belongs to one of 80 possible symmetry groups. The lecture presented the connection between different types of electronic and phononic dispersions (quasiparticles) in a given 2D material and the symmetry group to which that material belongs.

The presentation was based on published results [1–9] concerning non-magnetic 2D materials both with and without spin–orbit coupling.

This seminar was organized as part of the activities related to the HIP-2D-QM project and the ongoing efforts to strengthen the research capacities of the Center for Solid State Physics and New Materials.