ISSN: 2311-1801
| Velichko A. A. | Petrozavodsk State University, velichko@psu.karelia.ru |
| Pergament A. L. | Petrozavodsk State University, aperg@psu.karelia.ru |
| Stefanovitch G. B. | Petrozavodsk State University, gstef@psu.karelia.ru |
| Boriskov P. P. | Petrozavodsk State University, boriskov@psu.karelia.ru |
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Key words: vanadium dioxide switching stochastic resonance deterministic chaos. |
Summary: The switching effect with current-controlled negative resistance (S-shaped voltage-current characteristics) associated with the metal-insulator transition in vanadium dioxide is studied. The experiment shows that the switching devices exhibit complex nonlinear behaviors, including 1/f-type electronic noise, the effect of burst noise, stochastic resonance, period-adding sequences with intermittent chaos. In addition, deterministic chaos in the region of negative differential resistance is observed and, near the threshold point, the intrinsic dimension of the attractor is d = 2.3. Mechanisms of these phenomena are discussed. The analysis allows concluding that the noise and chaotic effects should obviously be taken into account in applications of VO2 in electronic devices, particularly in thermal sensors and bolometeric detectors. © Petrozavodsk State University |
Is passed for the press: 30 june 2014 year | |