Current enhanced two-level fluctuator noise in high Tc thin films

Grzegorz Jung, Michele Bonaldi, Janusz Konopka, Stefano Vitale

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Excess low frequency noise was observed in granular high Tc films. Random telegraph signal produced by a single, fast two level fluctuator dominated the noise properties of the sample at some particular bias conditions. Exponentially distributed switching rates fall in the MHz range. Apart from simple switching also more complicated three stage processes were observed. Duty cycle of the two level telegraph signal strongly depends on bias conditions. Power spectra of the excess noise signal can be well fitted with a single Lorentzian.

Original languageEnglish
Pages (from-to)1375-1376
Number of pages2
JournalPhysica B: Condensed Matter
StatePublished - 1 Jan 1990
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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