Signals of chaotic behavior in PMMA

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Tarih

2003-07

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Pergamon-Elsevier Science

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Araştırma projeleri

Organizasyon Birimleri

Dergi sayısı

Özet

The time evolution of the current passing through PMMA polymer thin films under 10 V at 23degreesC (296 K) was sampled at intervals ranging from 1 to 20 s. The data showed chaotic behavior in the context of pinned charge density waves [Phys. Rev. B 41 (1990) 11522]. The resultant time series has been analyzed by means of TISEAN, time series analysis software [The TISEAN package CHAOS 9 (1999) 413]. The analysis has revealed a positive maximal Lyapunov exponent. This is also corroborated by a calculation of the fractal dimension and application of the Kaplan-Yorke conjecture. In the analysis two widely separated time scales have been observed; the first zero crossing of the correlation function at 8380 s and the first marked minimum of the average mutual information at 40 s.

Açıklama

The authors acknowledge useful discussions with Prof. Dr. Ayşe Erzan. This work was partially supported by the Boğaziçi University Research Fund under project 99 BU 450.

Anahtar Kelimeler

Density, Metal insulator boundaries, Titanium nitride, Al-Al2O3-Ag diodes, Carrier concentration, Computer software, Correlation methods, Fractals, Polymethyl methacrylates, Thin films, Time series analysis, Correlation functions, Chaos theory

Kaynak

Chaos, Solitons and Fractals

WoS Q Değeri

Q1

Scopus Q Değeri

Q1

Cilt

17

Sayı

2-3

Künye

Hacınlıyan, A., Skarlatos, Y., Sahin, G., & Akin, G. (2003). Signals of chaotic behavior in PMMA. Chaos, Solitons and Fractals, 17(2-3), 575-583. doi:10.1016/S0960-0779(02)00400-9