Layered hybrid superlattices as designable quantum solids

• 成果类型: Review
• 署名作者: Wan, Zhong; Qian, Qi; Huang, Yu; Duan, Xiangfeng
• 署名单位: University of California System; University of California Los Angeles; The Chinese University of Hong Kong, Shenzhen; University of California System; University of California Los Angeles; University of California System; University of California Los Angeles
• 刊物名称: Nature
• ISSN/ISSBN: 0028-4561
• DOI: 10.1038/s41586-024-07858-3
• 发表日期: 2024-11-07
• 页码: 49-60
• 关键词: topological superconductivity; intercalation complexes; exciton condensation; organic frameworks; spin selectivity; ferromagnet; lattice; physics; yield; room

摘要

Crystalline solids typically show robust long-range structural ordering, vital for their remarkable electronic properties and use in functional electronics, albeit with limited customization space. By contrast, synthetic molecular systems provide highly tunable structural topologies and versatile functionalities but are often too delicate for scalable electronic integration. Combining these two systems could harness the strengths of both, yet realizing this integration is challenging owing to distinct chemical bonding structures and processing conditions. Two-dimensional atomic crystals comprise crystalline atomic layers separated by non-bonding van der Waals gaps, allowing diverse atomic or molecular intercalants to be inserted without disrupting existing covalent bonds. This enables the creation of a diverse set of layered hybrid superlattices (LHSLs) composed of alternating crystalline atomic layers of variable electronic properties and self-assembled atomic or molecular interlayers featuring customizable chemical compositions and structural motifs. Here we outline strategies to prepare LHSLs and discuss emergent properties. With the versatile molecular design strategies and modular assembly processes, LHSLs offer vast flexibility for weaving distinct chemical constituents and quantum properties into monolithic artificial solids with a designable three-dimensional potential landscape. This opens unprecedented opportunities to tailor charge correlations, quantum properties and topological phases, thereby defining a rich material platform for advancing quantum information science. Methods to manufacture layered hybrid superlattices composed of alternating crystalline atomic layers and self-assembled atomic or molecular interlayers are described, to make use of their combined strengths and produce designable quantum solids.