Fig 3A -1.3V Fig 3A -1.3V "Fig 3A, +1.6V" "Fig 3A, +1.6V" Fig 3B Fig 3B Fig 3C -1.3V Fig 3C -1.3V "Fig 3C, +1.6V" "Fig 3C, +1.6V" Fig 3D Fig 3D Fig 3D current(pA) Tip height (pm) current(pA) Tip height (pm) Tip height (pm) P_mechanical Curent (pA) E-field (v/nm) Curent (pA) E-field E-field (V/nm) stayed desorbed 2 904.2932333 25 836.3604981 250 0.168776371 2 1.437586783 25 1.913050656 3.125 145 3 3 855.1430376 50 807.9680189 300 0.19895288 3 1.520213511 50 1.9802764 2.8125 114 0 4 858.7519016 150 750.9867742 350 0.190721649 4 1.513824887 150 2.130530197 2.5 90 5 5 849.7181668 300 740.2052028 400 0.130232558 5 1.529919038 300 2.161562758 2.1875 134 1 6 837.9660756 450 718.6266778 450 0.075829384 6 1.551375453 450 2.226468971 1.875 118 1 7 806.3269752 600 700.9321472 500 0.028708134 7 1.612249174 600 2.282674588 1.5625 81 0 10 794.8756345 750 685.6388845 550 0.00591716 10 1.635475971 750 2.333589935 20 786.35325 900 668.4998157 600 0.005025126 20 1.653201026 900 2.39341876 100 739.0919045 650 0.011627907 100 1.75891522 350 656.7596511 700 0.009708738 350 1.979415145 600 643.054226 750 0 600 2.021602452 900 618.1998836 800 0 900 2.102879723 850 0.019047619 900 0