Kagome van-der-Waals Pd3P2S8 with flat band

Understand

With the advanced investigations into low-dimensional systems, it has become essential to find materials having interesting lattices that can be exfoliated down to monolayer.

• One particular important structure is a kagome lattice with its potentially diverse and vibrant physics.
• We report a van-der-Waals kagome lattice material, Pd3P2S8, with several unique properties such as an intriguing flat band.
• The flat band is shown to arise from a possible compact-localized state of all five 4d orbitals of Pd.