Electrical and dielectric properties of hard/soft CoFe2O4/Ni0.3CuxZnyFe2O4 (x, y ≤ 0.5) spinel ferrite nanofibers
Yazarlar (6)
M. A. Almessiere
Imam Abdulrahman Bin Faisal University, Suudi Arabistan
Prof. Dr. Hamit ERDEMİ Yalova Üniversitesi, Türkiye
A. Sadaqat
Imam Abdulrahman Bin Faisal University, Suudi Arabistan
Y. Slimani
Imam Abdulrahman Bin Faisal University, Suudi Arabistan
A. Baykal
Imam Abdulrahman Bin Faisal University, Suudi Arabistan
M. A. Gondal
King Fahd University of Petroleum And Minerals, Suudi Arabistan
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Journal of Materials Science Materials in Electronics (Q2)
Dergi ISSN 0957-4522 Dergi Bilgileri (2023)
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 01-2023
Kabul Tarihi 23-11-2022 Yayınlanma Tarihi 01-01-2023
Cilt / Sayı / Sayfa 34 / 3 / – DOI 10.1007/s10854-022-09589-5
Makale Linki http://dx.doi.org/10.1007/s10854-022-09589-5
UAK Araştırma Alanları
Nanoteknoloji
Özet
Hard–soft CoFe2O4/Ni0.3CuxZnyFe2O4 (x, y ≤ 0.5) spinel ferrite nanofibers (H/S CFO/CuZnFO SFNFs) were synthesized via electro-spin. The main aim of this study is to investigate effect of co-substitution of transition metals of Cu and Zn on the dielectric features of H/S CFO/NiFO SFNFs. The microstructure and morphology of all products were studied by XRD, SEM along with EDX, TEM and HR-TEM. The dielectric features of all products were evaluated as a function of frequency, F (1 MHz–3 GHz), and temperature, T (20–120 °C). The T-dependent AC and DC conductivity of all products improved with T, in agreement with the semiconductor behavior. While AC conductivity revealed two regions as F-dependent and F-independent, DC conductivities exhibited Arrhenius-type behavior above and below the transition T. Thermally stimulated charge transfer model produced activation energies before and after transition T ranging between Ea = 78 and 297 meV, which is consistent with AC and DC conductivities. The dielectric loss, dielectric constant and dielectric loss tangent of all nanofibers decreased with the increase in F at all T. The Cole–Cole plots were used to analyze the effect of grain and grain boundary on conduction mechanism, and they displayed mainly only one incomplete semicircle signifying non-Debye behavior and domination of grain boundaries to the conduction mechanism. The dielectric parameters of all samples vary significantly with compositional ratio. The dielectric behaviors of H/S CFO/CuZnFO SFNFs are correlated with the conduction mechanisms based on grain-to-grain boundaries, clarified by Koop's model.
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Atıf Sayıları
Scopus 6
Electrical and dielectric properties of hard/soft CoFe2O4/Ni0.3CuxZnyFe2O4 (x, y ≤ 0.5) spinel ferrite nanofibers
İletişim
  • Yalova Üniversitesi Rektörlüğü, Bahçelievler Mah. Çınarcık Yolu Caddesi No: 26 Merkez - YALOVA, 77200
  • unis@yalova.edu.tr 0226 815 50 00
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