Short Pyridine-Furan Springs Exhibit Bistable Dynamics of Duffing Oscillators

被引：4

作者：

Avetisov, Vladik A. ^{[1
]}

Frolkina, Maria A. ^{[1
]}

Markina, Anastasia A. ^{[1
]}

Muratov, Alexander D. ^{[1
]}

Petrovskii, Vladislav S. ^{[1
]}

机构：

[1] Russian Acad Sci, NN Semenov Fed Res Ctr Chem Phys, Kosygina 4, Moscow 119991, Russia

来源：

NANOMATERIALS | 2021年 / 11卷 / 12期

关键词：

Duffing oscillators; nanomechanics; bistability; spontaneous vibrations; stochastic resonance; STOCHASTIC RESONANCE; MOTION; FORCE; FIELD; MODEL;

D O I：

10.3390/nano11123264

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The intensive development of nanodevices acting as two-state systems has motivated the search for nanoscale molecular structures whose dynamics are similar to those of bistable mechanical systems, such as Euler arches and Duffing oscillators. Of particular interest are the molecular structures capable of spontaneous vibrations and stochastic resonance. Recently, oligomeric molecules that were a few nanometers in size and exhibited the bistable dynamics of an Euler arch were identified through molecular dynamics simulations of short fragments of thermo-responsive polymers subject to force loading. In this article, we present molecular dynamics simulations of short pyridine-furan springs a few nanometers in size and demonstrate the bistable dynamics of a Duffing oscillator with thermally-activated spontaneous vibrations and stochastic resonance.

引用

页数：14