Dimensionality confined magnetism in the RuCl3 based correlated 2D materials with geometrically frustrated lattices

具有几何挫败晶格的 RuCl3 相关二维材料中的维度受限磁性

• 批准号: 419941440
• 负责人: Dr. Maria Roslova
• 金额: --
• 依托单位: Institut für Festkörperforschung
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2019
• 资助国家: 德国
• 起止时间: 2018-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/419941440?language=en
• 关键词: Dimensionality; confined; magnetism; RuCl3; based

Materials with a honeycomb lattice derived from alpha-RuCl3, which is a prototypical topological quantum spin liquid system in two dimensions, will be used as versatile test-beds for (a) downscaling to few layered nanosheets by wet-chemical functionalization, (b) developing design principles for 2D mixed-metal nanomaterials based on modulation of their structure, composition and stoichiometry, (c) exploring possible hybrid structures combining different types of interfaces.The essential research steps to achieve these goals will be:1) To design and to exploit the downscaling routes for transition metal trihalides, including mixed-metal compounds. To push the production of isolated 2D crystals to the highest attainable level.2) To explore the nature of intercalates emerging during the wet chemistry functionalization of bulk MCl3 (M = 3d-, 4d-metals). To reveal the structural and compositional impact of the inserted guest atoms on the magnetic, transport and spectroscopic behavior of the 2D materials.3) To develop the synthesis methods for hybrid structures that combine different types of interfaces.4) To acquire systematic data about the structure and morphology of the 2D MCl3 (M = 3d-, 4d-metals) crystals for a detailed evaluation of structural and electronic parameters with a sub-nanometer precision.

由α-RuCl3衍生的蜂窝状晶格材料是一种典型的二维量子自旋液体拓扑体系，它将被用作多功能试验台，用于(A)通过湿化学官能化将尺度缩小到较少的层状纳米片，(B)基于对其结构、组成和化学计量的调制来开发二维混合金属纳米材料的设计原则，(C)探索结合不同类型界面的可能的杂化结构。实现这些目标的基本研究步骤将是：1)设计和开发过渡金属三卤化物，包括混合金属化合物的降尺度路线。2)探索块体MCl3(M=3D-、4D-金属)湿化学官能化过程中产生的插层的性质。为了揭示插入的客体原子对2D材料的磁性、输运和光谱行为的结构和组成的影响。3)开发结合不同类型界面的杂化结构的合成方法。4)获得关于2D MCl3(M=3D-，4d-金属)晶体的结构和形貌的系统数据，以便在亚纳米精度下详细评估结构和电子参数。