Magnetic and dielectric properties of Bi3 substituted SrFe12O19 hexaferrite
Yazarlar (5)
I. A. Auwal
Fatih Üniversitesi, Türkiye
Prof. Dr. Hamit ERDEMİ Yalova Üniversitesi, Türkiye
H. Sözeri
Tübitak Ulusal Metroloji Enstitüsü, Türkiye
H. Güngüneş
Hitit University, Türkiye
A. Baykal
Fatih Üniversitesi, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Journal of Magnetism and Magnetic Materials (Q2)
Dergi ISSN 0304-8853 Dergi Bilgileri (2016)
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 08-2016
Kabul Tarihi – Yayınlanma Tarihi 01-08-2016
Cilt / Sayı / Sayfa 412 / 1 / 69–82 DOI 10.1016/j.jmmm.2016.03.066
Makale Linki http://linkinghub.elsevier.com/retrieve/pii/S0304885316302621
UAK Araştırma Alanları
Polimer Bilimi
Özet
In the present study, SrBixFe12−xO19 (0.0≤x≤1.0) nanomaterials were successfully synthesized by using chemical co-precipitation method. Products were characterized by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Vibrating sample magnetometer (VSM), Mössbauer spectroscopy, AC conductivity and dielectric measurements. The crystal structural information studied by X-ray diffraction (XRD) indicated the formation of single phase pure hexagonal structure, while electron-dispersive X-ray spectroscopy (EDX) revealed the stoichiometric ratio among Bi, Sr, Fe elements. The crystallite sizes of the products were in the range of 65–82 nm. VSM analysis showed a tendency in saturation magnetization as Bi2O3 concentration raises, which can be ascribed to preferential site occupied by Bi3+ ions. The frequency-dependent ac conductivity plots exhibited similar trends for all samples. A significant temperature-dependent behavior was only observed at low and medium frequencies. The replacement of non-magnetic Bi3+ ions by Fe3+ ones having magnetic moment of 5 µB decrease the magnetic moment of 4f1 site. The AC conductivity increases with frequency as hopping of the charge carriers increases between Fe2+and Fe3+. The DC conductivity exhibited an improvement with increasing temperature and Bi content, and the highest conductivity was measured as 2.84×10−9 S cm−1 for x=0.8 at 120 °C. The variation of dielectric constant, dielectric loss and tangent loss was observed with the frequency and temperature due to change of electrical conductivity as x changes.
Anahtar Kelimeler
AC conductivity | Coprecipitation | Dielectric properties | Hexaferrite | Magnetic properties
Science Direct
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Yöksis 51
Scopus 61
Magnetic and dielectric properties of Bi3 substituted SrFe12O19 hexaferrite
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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