Experimental investigation of quasiperiodic-chaotic-quasiperiodic-chaotic transition in a direct current magnetron sputtering plasma

Gopi Kishan Sabavath; Pankaj Kumar Shaw; A. N. Sekar Iyengar; I. Banerjee; S. K. Mahapatra

doi:10.1063/1.4928902

Experimental investigation of quasiperiodic-chaotic-quasiperiodic-chaotic transition in a direct current magnetron sputtering plasma

Gopi Kishan Sabavath, Pankaj Kumar Shaw, A. N. Sekar Iyengar, I. Banerjee, S. K. Mahapatra

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Floating potential fluctuations from a direct current magnetron sputtering plasma have been analysed using time series analysis techniques like phase space plots, power spectra, frequency bifurcation plot, etc. The system exhibits quasiperiodic-chaotic-quasiperiodic-chaotic transitions as the discharge voltage was increased. The transitions of the fluctuations, quantified using the largest Lyapunov exponent, have been corroborated by Hurst exponent and the Shannon entropy. The Shannon entropy is high for quasiperiodic and low for chaotic oscillations.

Original language	English
Article number	082121
Journal	Physics of Plasmas
Volume	22
Issue number	8
DOIs	https://doi.org/10.1063/1.4928902
State	Published - 1 Aug 2015
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics

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title = "Experimental investigation of quasiperiodic-chaotic-quasiperiodic-chaotic transition in a direct current magnetron sputtering plasma",

abstract = "Floating potential fluctuations from a direct current magnetron sputtering plasma have been analysed using time series analysis techniques like phase space plots, power spectra, frequency bifurcation plot, etc. The system exhibits quasiperiodic-chaotic-quasiperiodic-chaotic transitions as the discharge voltage was increased. The transitions of the fluctuations, quantified using the largest Lyapunov exponent, have been corroborated by Hurst exponent and the Shannon entropy. The Shannon entropy is high for quasiperiodic and low for chaotic oscillations.",

author = "Sabavath, {Gopi Kishan} and Shaw, {Pankaj Kumar} and {Sekar Iyengar}, {A. N.} and I. Banerjee and Mahapatra, {S. K.}",

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AU - Sabavath, Gopi Kishan

AU - Shaw, Pankaj Kumar

AU - Sekar Iyengar, A. N.

AU - Banerjee, I.

AU - Mahapatra, S. K.

PY - 2015/8/1

Y1 - 2015/8/1

N2 - Floating potential fluctuations from a direct current magnetron sputtering plasma have been analysed using time series analysis techniques like phase space plots, power spectra, frequency bifurcation plot, etc. The system exhibits quasiperiodic-chaotic-quasiperiodic-chaotic transitions as the discharge voltage was increased. The transitions of the fluctuations, quantified using the largest Lyapunov exponent, have been corroborated by Hurst exponent and the Shannon entropy. The Shannon entropy is high for quasiperiodic and low for chaotic oscillations.

AB - Floating potential fluctuations from a direct current magnetron sputtering plasma have been analysed using time series analysis techniques like phase space plots, power spectra, frequency bifurcation plot, etc. The system exhibits quasiperiodic-chaotic-quasiperiodic-chaotic transitions as the discharge voltage was increased. The transitions of the fluctuations, quantified using the largest Lyapunov exponent, have been corroborated by Hurst exponent and the Shannon entropy. The Shannon entropy is high for quasiperiodic and low for chaotic oscillations.

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Experimental investigation of quasiperiodic-chaotic-quasiperiodic-chaotic transition in a direct current magnetron sputtering plasma

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