Study the influence of oxygen-deficient (δ=0.135) in SrFeO3-δ nanoparticles perovskite on structural, electrical and magnetic properties

被引:15
作者
Abd El-Naser, A. [1 ,2 ]
Abdel-Khalek, E. K. [3 ]
Nabhan, E. [1 ]
Rayan, D. A. [4 ]
Gaafar, M. S. [2 ]
Abd El-Aal, N. S. [2 ]
机构
[1] Al Azhar Univ, Fac Sci, Dept Phys, Girls Branch, Cairo, Egypt
[2] Natl Inst Stand, Ultrason Lab, El Giza, Egypt
[3] Al Azhar Univ, Fac Sci, Dept Phys, Cairo 11884, Egypt
[4] Cent Met Res & Dev Inst CMRDI, Cairo, Egypt
关键词
SrFeO3-delta; structural; ferroelectric; magnetic order; multiferroic properties;
D O I
10.1080/14786435.2020.1862427
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this report, SrFeO3-delta nanoparticle perovskite sample was prepared by the co-precipitation method. Rietveld refinement of the X-ray diffraction (XRD) data of SrFeO3-delta sample showed that it has a cubic phase (space group: Pm3 m). The morphology and average size (11.15 nm) of the SrFeO3-delta nanoparticle samples were characterised by the high-resolution transmission electron microscope (HRTEM). Mossbauer spectroscopy and X-ray photoelectron spectroscopy (XPS) results showed that the iron exists in different oxidation states. The SrFeO3-delta nanoparticle sample exhibits a small energy band gap in the visible region. The ferroelectric nature in SrFeO3-delta nanoparticle sample has been deduced from the dielectric measurement which is confirmed by differential scanning calorimetric (DSC) study. The magnetic order in SrFeO3-delta nanoparticle sample has been deduced from the magnetic measurement which confirmed by Mossbauer spectroscopic study. Based on the obtained results, we concluded the presence of multiferroic nature in SrFeO3-delta nanoparticle sample.
引用
收藏
页码:710 / 728
页数:19
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