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Superstructure and boundary structure in stage 4 MoCl_5-graphite intercalation compounds studied by atomic force microscopy and scanning tunneling microscopy

机译:原子力显微镜和扫描隧道显微镜研究MoCl_5-4石墨插层化合物的上层结构和边界结构

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Intercalated domains on stage 4 MoCl_5-graphite intercalation compounds (MoCls-GIC's) were observed by atomic force microscopy (AFM) and scanning tunneling microscopy (STM). On large intercalated domains, a superstructure was found, in relation with a modulation of the electronic properties of the first layer of carbon. From that, the structure of the chloride ions layer was discussed and a model including dimer molecules was proposed. At the boundaries between large intercalated and nonintercalated domains, corrugations were observed along certain crystallographic directions of graphite. Their morphology was studied in detail at atomic scale and formation mechanisms were proposed. Small intercalated domains were also observed. Their shapes were irregular but their boundaries were clear cut.
机译:通过原子力显微镜(AFM)和扫描隧道显微镜(STM)观察到MoCl_5-石墨嵌入化合物(MoCls-GIC's)上的嵌入域。在较大的插入域上,发现了与碳第一层的电子特性调制有关的上层结构。据此,讨论了氯离子层的结构,并提出了包含二聚体分子的模型。在大的嵌入和非嵌入域之间的边界处,沿石墨的某些晶体学方向观察到波纹。详细研究了它们的形态,并提出了形成机理。还观察到小的插入区域。它们的形状不规则,但边界清晰。

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