Abstract We report scanning tunneling microscopy study to clarify the modulation structure in silver intercalated stage 2 2H-NbSe2 at low temperature. In addition to the surface structure expected from previous electron diffraction measurements, we observed unidirectional superstructure with period of 2 3 a 0 . Appearance of this new superstructure indicates that the instability of original charge density wave in pristine 2H-NbSe2 against strain induced by intercalants.

中文翻译：

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银插层 2H-NbSe2 中单向超结构的出现

摘要 我们报告了扫描隧道显微镜研究，以阐明低温下银插层 2 2H-NbSe2 的调制结构。除了先前电子衍射测量所预期的表面结构之外，我们还观察到周期为 2 3 a 0 的单向超结构。这种新超结构的出现表明原始 2H-NbSe2 中原始电荷密度波对嵌入剂引起的应变的不稳定性。