Fig. 8. (Color online) Raman shift and I-V characteristic results of tip (a) Raman shift and (b) I-V characteristic (c) no metal contacted on the tip and (d) cross-sectional SEM image of the tip.

New Phys.: Sae Mulli 2021;71:827~837 https://doi.org/10.3938/NPSM.71.827

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