Observation of locked intrinsic localized vibrational modes in a micromechanical oscillator array

被引:280
作者
Sato, M [1 ]
Hubbard, BE
Sievers, AJ
Ilic, B
Czaplewski, DA
Craighead, HG
机构
[1] Cornell Univ, Atom & Solid State Phys Lab, Ithaca, NY 14853 USA
[2] Cornell Univ, Cornell Nanofabricat Facil, Ithaca, NY 14853 USA
[3] Cornell Univ, Dept Appl & Engn Phys, Ithaca, NY 14853 USA
关键词
D O I
10.1103/PhysRevLett.90.044102
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The nonlinear vibrational properties of a periodic micromechanical oscillator array have been measured. For sufficiently large amplitude of the driver, the optic mode of the di-element cantilever array becomes unstable and breaks up into excitations ranging over only a few cells. A driver-induced locking effect is observed to eternalize some of these intrinsic localized modes so that their amplitudes become fixed and the modes become spatially pinned.
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页数:4
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