Exploring The Cr2+ Doping Effect On Structural, Vibrational And Dielectric Properties Of Mn-Zn Ferrites

被引：3
|
作者：
Choudhary, Pankaj [1 ]
Tyagi, Tarun [2 ]
Dar, M. A. [1 ]
Varshney, Dinesh [1 ]
机构：
[1] Devi Ahilya Univ, Sch Phys, Vigyan Bhavan, Khandwa Rd Campus, Indore 452001, Madhya Pradesh, India
[2] Amity Univ, Amity Inst Nanotechnol, Sect 125, Noida 201303, India
来源：
DAE SOLID STATE PHYSICS SYMPOSIUM 2015 | 2016年 / 1731卷
关键词：
Polycrystalline; X-ray diffraction; Raman; Dielectric; MAGNETIC-PROPERTIES;
D O I：
10.1063/1.4947972
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A series of Cr doped Mn-Zn ferrites with compositional formula Mn0.5Zn0.5-xCrxFe2O4 (x = 0, 0.3, 0.5) were prepared by solid-state reaction route. X-ray diffraction (XRD) analysis reveals that the samples prepared are polycrystalline cubic spinel in structure (Fd3m) with some secondary phase of alpha-Fe2O3. Slight variation in the lattice parameter of Cr doped Mn0.5Zn0.5Fe2O4 has been observed due to difference in ionic radii of cations. Small shift in Raman modes towards higher wave number has been observed. Further the line width decreases with the doping ions. A giant dielectric constant similar to 10(4) is observed for parent Mn0.5Zn0.5Fe2O4 which is found to decrease with increase in Cr2+ doping. Low dielectric loss is observed for Mn0.5Zn0.5Fe2O4 and improves with Cr2+ doping at Zn2+ site.
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页数：3
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