Dynamic relaxation oscillations in a nonlinearly driven quartz crystal

Autor:	Houri, S., Geuze, M. J., Venstra, W. J.
Rok vydání:	2015
Předmět:	Nonlinear Sciences - Chaotic Dynamics Condensed Matter - Materials Science
Zdroj:	Appl. Phys. Lett. 107, 073502 (2015)
Druh dokumentu:	Working Paper
DOI:	10.1063/1.4928620
Popis:	We demonstrate thermo-mechanical relaxation oscillations in a strongly driven quartz crystal. Dynamic bifurcation leads to two stable oscillation states with a distinct electrical impedance. Slow Joule-heating, which shifts the susceptibility of the crystal, provides a feedback that leads to thermally-induced oscillations, in which the amplitude of the crystal is modulated by a relaxation cycle. The frequency of the relaxation cycle is roughly a million times lower than the resonance frequency of the crystal, and it can be adjusted by the detuning from the critical point for dynamic bifurcation. The experimental observations are reproduced by a simple model that takes into account the slow dynamics of the system. Comment: Main text: 8 pages, 4 figures. Supplementary information: 4 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1509.03096 Zobrazit plný text záznamu View this record from Arxiv