Tension mediated nonlinear coupling between orthogonal mechanical modes of nanowire resonators

被引：6

作者：

Mathew, John P. ^{[1
]}

Bhushan, Anand ^{[2
]}

Deshmukh, Mandar M. ^{[1
]}

机构：

[1] Tata Inst Fundamental Res, Dept Condensed Matter Phys & Mat Sci, Homi Bhabha Rd, Bombay 400005, Maharashtra, India

[2] Natl Inst Technol, Dept Mech Engn, Patna 800005, Bihar, India

来源：

SOLID STATE COMMUNICATIONS | 2018年 / 282卷

关键词：

Nanowire resonator; NEMS; Nonlinear coupling; ELECTROMECHANICS; SUPERLATTICES;

D O I：

10.1016/j.ssc.2018.07.009

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We study the nonlinear coupling between orthogonal flexural modes of doubly clamped InAs nanowire resonators. The two orthogonal modes are formed by the symmetry breaking and lifting of degeneracy of the fundamental mode. The presence of a Duffing nonlinearity emerges when a mode is driven to large amplitudes. In this regime the modes are coupled due to the tension induced from the large amplitude of oscillations and is reflected in the hysteretic response of the mode that is not strongly driven. We study the driven-driven response of the mechanical modes to elucidate the role of nonlinear mode coupling in such mechanical resonators. The dynamics of the coupled modes studied here could prove useful in technological applications such as nanowire based vectorial force sensing.

引用

页码：17 / 20

页数：4

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