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Surface/Interface Chemistry Engineering of Correlated‐Electron Materials: From Conducting Solids, Phase Transitions to External‐Field Response
Advanced Science ( IF 14.3 ) Pub Date : 2021-01-05 , DOI: 10.1002/advs.202002807
Zejun Li 1 , Qiran Wu 1 , Changzheng Wu 1
Affiliation  

Correlated electronic materials (CEMs) with strong electron−electron interactions are often associated with exotic properties, such as metal‐insulator transition (MIT), charge density wave (CDW), superconductivity, and magnetoresistance (MR), which are fundamental to next generation condensed matter research and electronic devices. When the dimension of CEMs decreases, exposing extremely high specific surface area and enhancing electronic correlation, the surface states are equally important to the bulk phase. Therefore, surface/interface chemical interactions provide an alternative route to regulate the intrinsic properties of low‐dimensional CEMs. Here, recent achievements in surface/interface chemistry engineering of low‐dimensional CEMs are reviewed, using surface modification, molecule−solid interaction, and interface electronic coupling, toward modulation of conducting solids, phase transitions including MIT, CDW, superconductivity, and magnetism transition, as well as external‐field response. Surface/interface chemistry engineering provides a promising strategy for exploring novel properties and functional applications in low‐dimensional CEMs. Finally, the current challenge and outlook of the surface/interface engineering are also pointed out for future research development.

中文翻译:


相关电子材料的表面/界面化学工程:从导电固体、相变到外场响应



具有强电子-电子相互作用的相关电子材料(CEM)通常具有奇异的特性,例如金属-绝缘体转变(MIT)、电荷密度波(CDW)、超导性和磁阻(MR),这些都是下一代的基础凝聚态研究和电子设备。当 CEM 尺寸减小时,暴露出极高的比表面积并增强电子相关性,表面态与体相同样重要。因此,表面/界面化学相互作用为调节低维 CEM 的固有性质提供了另一种途径。本文回顾了低维 CEM 表面/界面化学工程的最新成就,利用表面改性、分子-固体相互作用和界面电子耦合来调制导电固体、相变(包括 MIT、CDW、超导性和磁转变) ,以及外场响应。表面/界面化学工程为探索低维 CEM 的新特性和功能应用提供了一种有前途的策略。最后,还指出了表面/界面工程当前面临的挑战和未来研究发展的展望。
更新日期:2021-02-17
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