双模态振幅调制原子力显微术相互作用区转变研究1)

周锡龙, 李法新

INVESTIGATION ON TRANSITION BETWEEN TIP-SAMPLE INTERACTION REGIMES IN BIMODAL AMPLITUDE MODULATION ATOMIC FORCE MICROSCOPY1)

Zhou Xilong, Li Faxi

表1 数值计算过程中采用的探针和样品参数

Table 1 The parameters of the probe and the sample used in the simulation

parameters Value length/μm 225 width/μm 28 thickness/μm 3 density/(kg • m-3) 2.33 x i03 R/nm 20 H/J 7.i x i0-20 a0 /nm 0.165 Et/GPa 160 Vt 0.3 Vs 0.3 natural frequency/kHz 79.327 C/0i) 497.131 (/02) force constant/(N • m-i) 2.73(ki) 61.94(k2) quality factor 200(Gi) 450(^2)