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RC circuit and conductivity properties of Mn0.6Co 0.4Fe2O4 nanocomposite synthesized by hydrothermal method       
Yazarlar
Erdoğan Şentürk
Türkiye
Yüksel Köseoğlu
Türkiye
Tuğba Şaşmaz Kuru
İstanbul Okan Üniversitesi, Türkiye
Furkan Alan
Türkiye
Dr. Öğr. Üyesi Muhammed TAN
Türkiye
Özet
Mn containing cobalt ferrite (CoFe2O4) nanocomposites were synthesized by polyethylene glycol (PEG) assisted hydrothermal method. Dielectric studies were carried out as a function of frequency and temperature using broadband dielectric measurement system. Dielectric properties were explained in terms of interfacial polarization and equivalent resistance-capacitor (RC) circuit. Frequency dependent dielectric loss factor has found to have two different behaviors which are explained by conductivity. DC conductivity obeys the Arrhenius law and exhibits two different behaviors corresponding to low and high temperature regions. It has two activation energies as 0.33 eV for low temperature region and 0.55 eV for high temperature region. Frequency dependent AC conductivity was analyzed by Jonscher's universal power law which is varying as ws and the temperature dependent power parameter supported with the Correlated Barrier Hopping (CBH) model. © 2013 Elsevier B.V. All rights reserved.
Anahtar Kelimeler
Nanoparticles,Hydrothermal method,Interfacial polarization
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Journal of Alloys and Compounds
Dergi ISSN 0925-8388
Dergi Tarandığı Indeksler SCI
Dergi Grubu Q1
Makale Dili İngilizce
Basım Tarihi 01-2013
Cilt No 578
Sayfalar 90 / 95
Doi Numarası 10.1016/j.jallcom.2013.04.206