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Spinning and translational motion of Sb nanoislands manipulated on MoS _2

机译:MoS _2操纵的Sb纳米岛的自旋和平移运动

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摘要

Antimony nanoislands grown on a MoS_2 surface in ultra-high vacuum have been manipulated by atomic force microscopy (AFM) in ambient conditions. The island profiles have been digitized and provided as an input to a collisional algorithm based on classical mechanics. Assuming that the islands are rigid and static friction is high enough to prevent further motion after the passage of the probing tip, the direction of motion and the angle of rotation of the islands have been reproduced numerically. For a given spacing between the scan lines, the angle of deflection with respect to the fast scan direction and the angular speed of the islands are expected to vary with the friction between islands and substrate. From a comparison between model and experiment a shear strength in the order of 0.2 MPa is estimated.
机译:在环境条件下,通过原子力显微镜(AFM)处理了在超高真空下在MoS_2表面上生长的锑纳米岛。岛轮廓已被数字化,并作为基于经典力学的碰撞算法的输入。假设这些岛是刚性的并且静摩擦力足够高以防止在探测尖端通过之后进一步运动,则岛的运动方向和旋转角度已通过数值再现。对于扫描线之间的给定间隔,相对于快速扫描方向的偏转角和岛的角速度预计将随岛和基板之间的摩擦而变化。通过模型与实验之间的比较,估计剪切强度约为0.2 MPa。

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