• DocumentCode
    3667175
  • Title

    Low frequency noise characteristics of BaTiO3-NiFe2O4 composites at phase transition

  • Author

    S. Pralgauskaitè;J. Matukas;R. Grigalaitis;J. Banys;I. Zamaraitè;M. M. Vitajovic Petrovic;J. D. Bobic;B. D. Stojanovic

  • Author_Institution
    Radiophysics Dep., Vilnius University, Vilnius, Lithuania
  • fYear
    2015
  • fDate
    6/1/2015 12:00:00 AM
  • Firstpage
    1
  • Lastpage
    4
  • Abstract
    In this work we present detailed investigation of low frequency noise characteristics of BaTiO3-NiFe2O4 ceramic composites of different percentage of NiFe2O4. At the particular temperatures (that gets under the broad maximum of dielectric permittivity observed around 300 K) very intensive few separate peaks of random telegraph noise signal were observed. It shows that phase transition in the investigated materials goes through separate stages instead of the smeared out one. Characteristic times of the physical processes during the phase transition are close to one millisecond, and activation energy is around (0,34-0,49) eV.
  • Keywords
    "Temperature distribution","Ceramics","Fluctuations","Low-frequency noise","Temperature measurement"
  • Publisher
    ieee
  • Conference_Titel
    Noise and Fluctuations (ICNF), 2015 International Conference on
  • Type

    conf

  • DOI
    10.1109/ICNF.2015.7288587
  • Filename
    7288587
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3667175