论文标题
Kagome Van-Waals PD3P2S8与平坦的乐队
Kagome van-der-Waals Pd3P2S8 with flat band
论文作者
论文摘要
通过对低维系统的高级研究，找到具有有趣晶格的材料，可以将其剥落到单层。一个特殊的重要结构是具有潜在多样化和充满活力的物理学的Kagome晶格。我们报告了Van-Waals Kagome晶格材料PD3P2S8，具有几种独特的属性，例如有趣的平坦带。表现出平面带是由PD的所有五个4D轨道的可能紧密定位的状态引起的。精确测量磁磁敏感性，以支持从频带结构获得的计算易感性。我们进一步证明，可以将PD3P2S8剥落至单层，这最终将使用电场门控在此二维Kagome晶格中可能控制局部状态。
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. The diamagnetic susceptibility is precisely measured to support the calculated susceptibility obtained from the band structure. We further demonstrate that Pd3P2S8 can be exfoliated down to monolayer, which ultimately will allow the possible control of the localized states in this two-dimensional kagome lattice using the electric field gating.
