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Evidence of a two-dimensional nitrogen crystalline structure on silver surfaces
Xuegao Hu, Haijun Cao, Zhicheng Gao +11
Nitrogen, the most abundant element in Earth's atmosphere, exists as a diatomic gas under standard temperature and pressure. In the two-dimensional (2D) limit, atomically thin nitr…
1D flat bands in phosphorene nanoribbons with pentagonal nature
Shuo Sun, Jing-Yang You, Zhihao Cai +16
Materials with flat bands can serve as a promising platform to investigate strongly interacting phenomena. However, experimental realization of ideal flat bands is mostly limited t…
Evidence for Multiferroicity in Single-Layer CuCrSe
Zhenyu Sun, Yueqi Su, Aomiao Zhi +13
Multiferroic materials, which simultaneously exhibit ferroelectricity and magnetism, have attracted substantial attention due to their fascinating physical properties and potential…
Layer-dependent Raman spectroscopy of ultrathin TaPdTe
Zhenyu Sun, Zhaopeng Guo, Dayu Yan +7
Two-dimensional topological insulators (2DTIs) or quantum spin Hall insulators are attracting increasing attention due to their potential applications in next-generation spintronic…
Unconventional band structure via combined molecular orbital and lattice symmetries in a surface-confined metallated graphdiyne sheet
Ignacio Piquero-Zulaica, Wenqi Hu, Ari Paavo Seitsonen +13
Graphyne (GY) and graphdiyne (GDY)-based materials represent an intriguing class of two-dimensional (2D) carbon-rich networks with tunable structures and properties surpassing thos…
Bound excitons and bandgap engineering in violet phosphorus
Zhenyu Sun, Zhihao Cai, Peng Cheng +5
Violet phosphorus (VP), the most stable phosphorus allotrope, is a van der Waals semiconductor that can be used to construct -type nanodevices. Recently, high-quality V…