AFM probe with the U-shaped cross-sectional cantilever for measuring the ultra-low coefficient of friction of 10−6
Yushan Chen,
Liang Jiang,
Linmao Qian
Abstract:Accurately measuring the coefficient of friction (COF) is the fundamental prerequisite of superlubricity research. This study aimed to reduce the COF measurement resolution Δμ of atomic force microscopy (AFM). Based on the theoretical model, a distinctive strategy was adopted to reduce Δμ by optimizing the cantilever’s cross-section of the AFM probe, inspired by civil engineering. Δμ can be reduced by decreasing the width of the horizontal side wR and the wall thickness t and increasing the width of the vertic… Show more
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