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 journalArticlepeer-review

6 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 languageEnglish
Article number082121
JournalPhysics of Plasmas
Volume22
Issue number8
DOIs
StatePublished - 1 Aug 2015
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

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