We investigate mechanically exfoliated thin 1T-TaS2 with scanning tunneling microscopy at room temperature. Sample preparation without air exposure enables access to intrinsic charge-density-wave (CDW) phases of thin 1T-TaS2. At room temperature, we can observe the expected nearly commensurate CDW (NCCDW) phase on thin flakes similar to bulk 1T-TaS2. Further analysis reveals that CDW domains in the NCCDW phase become smaller and have a more anisotropic shape with decreasing thickness in the range of 8–28 layers. Our findings demonstrate that the anisotropic CDW nature of thin 1T-TaS2 would be crucial to understand its exotic CDW-related phenomena and demand a systematic study on its correlation between the thickness-driven CDW domain anisotropy and the intermediate CDW states in thin 1T-TaS2.
CITATION STYLE
Yang, W., Kim, D., Kim, H. K., & Kim, T. H. (2023). Thickness dependent charge density wave networks on thin 1T-TaS 2. Journal of the Korean Physical Society, 82(3), 293–297. https://doi.org/10.1007/s40042-023-00704-1
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