In the study of condensed matter physics, kogome lattices have become a new focus because of their novel features. But the intrinsic features of the 2D kogome lattices are often affected or even destroyed, due to the in-plane and interlayer interactions in materials. This causes the bulk states of the material to be inconsistent with its characteristic structure in theoretical calculation.
University of Science and Technology of China (USTC) of the Chinese Academy of Sciences researchers realized for the first time the detection for the surface states of kagome metal RV6Sn6. They have realised by angle resolved photoemission spectroscopy (ARPES) with real-space resolution. The research paper has been published in Physical Review Letters.
Scientists have studied the newly discovered material- RV6Sn6. This material contains an independent 2D kagome lattice.
The scientists have done an experiment and, in this experiment, the real-space mapping of the ARPES distinguished the electronic structures on different cleavage planes of RV6Sn6. The scientists have realized the detection for the 2D kagome surface states. This was even further proved by density functional theory (DFT) calculations of its characteristic electronic structure.
This research offers a new approach for investigating intrinsic physics of kagome lattices.