SrCoxZrxFe12-2xO19 and SrNixZrxFe12-2xO19 hexaferrites: A Comparison Study of AC Susceptibility, FC-ZFC and hyperfine interactions
Erişim
info:eu-repo/semantics/closedAccessTarih
2020Yazar
Almessiere, Munirah AbdullahSlimani, Yassine
Güngüneş, Hakan
Demir Korkmaz, Ayşe
Baykal, Abdulhadi
Trukhanov, An V.
Yasin, Ghulam
Üst veri
Tüm öğe kaydını gösterKünye
Almessiere, M. A., Slimani, Y., Güngüneş, H., Korkmaz, A. D., Baykal, A., Trukhanov, A. V., & Yasin, G. (2020). SrCoxZrxFe12− 2xO19 and SrNixZrxFe12− 2xO19 hexaferrites: A Comparison Study of AC Susceptibility, FC-ZFC and hyperfine interactions. Chinese Journal of Physics, 66, 596-605.Özet
This study compares the AC susceptibility, FC-ZFC and hyperfine interactions of Sr(CoxZrx) Fe12-2xO19 and Sr(NixZrx)Fe12-2xO19 hexaferrites (HFs) manufactured via ultrasonic route. The formation of M-type hexaferrites have been confirmed by X-ray powder diffraction (XRD), Fourier transform-infrared spectroscopy (FT-IR) and high-resolution transmission electron microscopy (HR-TEM) techniques. Scanning electron microscopy (SEM) presented the hexagonal-platelet morphology of products. The variation in isomer shift, line width, quadrupole splitting and hyperfine magnetic field values of them have been governed by Fe-57 Mossbauer spectroscopy which showed that Co2+ and Zr4+ ions located at generally octahedral and 2b sites, while Ni2+ and Zr4+ ions located at octahedral 12k and 4f(2) sites. Measurements of magnetization versus temperature (M-T) and AC susceptibility versus temperature were carried out. The various synthesized HFs displayed ferrimagnetic behavior in the temperature interval of 10-325 K. Super-spin glass-like behavior was noticed at lower temperatures. Neel-Arrhenius and Vogel-Fulcher models were used to explore the experimental AC susceptibility. It was showed that a lower Co-Zr substitution content leads to strengthen the magnetic exchange interactions, however even low Ni-Zr substitution content provoke a reduction in magnetic exchange interactions.
Cilt
66Koleksiyonlar
- Makale Koleksiyonu [186]
- Scopus İndeksli Yayınlar Koleksiyonu [2695]
- WoS İndeksli Yayınlar Koleksiyonu [2986]