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2014 | 12 | 12 | 851-861
Tytuł artykułu

Investigation of complex impedance and modulus properties of Nd doped 0.5BiFeO3-0.5PbTiO3 multiferroic Composites

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
0.5BiNdxFe1−x O 3 − 0.5PbTiO3 (BNxF1−x − PT)(x = 0.05, 0.10, 0.15, 0.20) composites were successfully synthesized by a solid state reaction technique. At room temperature, X-ray diffraction shows tetragonal structure for all concentrations of Nd doped 0.5BiFeO3 − 0.5PbTiO3 composites. The nature of Nyquist plot confirms the presence of bulk effects only for BNxF1−x − PT (x = 0.05, 0.10, 0.15, 0.20) composites. The bulk resistance is found to decreases with the increasing temperature as well as Nd concentration and exhibits a typical negative temperature coefficient of resistance (NTCR) behavior. Both the complex impedance and modulus studies have suggested the presence of non-Debye type of relaxation in the composites. Conductivity spectra reveal the presence of hopping mechanism in the electrical transport process of the composites. The activation energy calculated from impedance plot of the composite decreases with increasing Ndx concentration and found to be 0.89, 0.76, 0.71 and 0.70 eV for x=0.05, 0.10, 0.15 and 0.20 respectively.
Wydawca

Czasopismo
Rocznik
Tom
12
Numer
12
Strony
851-861
Opis fizyczny
Daty
wydano
2014-12-01
online
2014-08-27
Twórcy
autor
  • Materials Research Laboratory, School of Physics, Sambalpur University, Jyoti Vihar, Burla, 768019, Odisha, India
  • Materials Research Laboratory, School of Physics, Sambalpur University, Jyoti Vihar, Burla, 768019, Odisha, India
  • Materials Research Laboratory, School of Physics, Sambalpur University, Jyoti Vihar, Burla, 768019, Odisha, India
  • Materials Research Laboratory, School of Physics, Sambalpur University, Jyoti Vihar, Burla, 768019, Odisha, India, banarjibehera@gmail.com
  • Materials Research Laboratory, School of Physics, Sambalpur University, Jyoti Vihar, Burla, 768019, Odisha, India
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11534-014-0523-2
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