Controllable high-speed rotation of nanowires
Controllable high-speed rotation of nanowires
复制标题
DOI：
10.1103/physrevlett.94.247208
复制
发表时间：
2005-06-24
影响因子：
8.6
通讯作者：
Chien, CL
中科院分区：
文献类型：
--
作者：
Fan, DL;Zhu, FQ;Chien, CL
我们报告了一种通用的方法，通过施加在多个电极上的交流电压来实现纳米线的可控高速旋转。纳米线的旋转可以通过精确控制的旋转速度（至少1800转/分）、确定的手性和总旋转角度立即打开或关闭。测定了不同长度的纳米线在流体阻力作用下的转矩。我们还演示了一个使用旋转纳米线驱动尘埃颗粒作圆周运动的微电机。该方法已用于旋转磁性和非磁性纳米线以及碳纳米管。
We report a versatile method for executing controllable high-speed rotation of nanowires by ac voltages applied to multiple electrodes. The rotation of the nanowires can be instantly switched on or off with precisely controlled rotation speed (to at least 1800 rpm), definite chirality, and total angle of rotation. We have determined the torque due to the fluidic drag force on nanowire of different lengths. We also demonstrate a micromotor using a rotating nanowire driving a dust particle into circular motion. This method has been used to rotate magnetic and nonmagnetic nanowires as well as carbon nanotubes.