Effect of doping of chromium ions on the structural and magnetic properties of nickel ferrite
Source abstract
Abstract
Abstract In this paper we report the synthesis of Cr doped nickel ferrite denoted by the generic formula Ni1−xCrxFe2O4 (x=0.05, 0.10 and 0.15) through a standard chemical co-precipitation method. An effort has been made to study the effect of doping of trivalent ions on the formation of cationic vacancies in the crystal. The structural characterization of the samples was carried out using X-ray diffraction and Raman spectroscopy. X-ray diffraction confirmed the formation of single spinel phase. The refinement of the pattern using GSAS showed the presence of cationic vacancies in all the three samples which give rise to compressive strain. Raman spectroscopy and Mossbauer measurements indicated distortion in the crystal structure as doping of Cr3+ was increased. The magnetic measurements of all the samples exhibited negligible coercivity coupled with ferrimagnetic nature indicating very low magnetic anisotropy. Additionally the samples showed a steep magnetization curve making it an attractive choice for magnetic switching applications.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic Properties and Synthesis of Ferrites · Multiferroics and related materials · Magneto-Optical Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (43)
Show source-provided references
1. A novel shape transformation of Fe–MgO nanocomposites: microstructural, magnetic and hyperfine investigations10.1088/0022-3727/40/15/006 ↗
2. Magnetic softness and high frequency characteristics of Fe65Co35O alloy films
3. Magnetically soft, high-moment, high-resistivity thin films using discontinuous metals/native oxide multi layers10.1063/1.1383998 ↗
4. Operation of ferrite junction circulator10.1109/TMTT.1965.1125923 ↗
5. Fabrication and performance of ferrite phase shifters for millimetre frequencies10.1109/TMAG.1979.1060374 ↗
6. Radiation and scattering characteristics of microstrip antennas on normally biased ferrite substrates10.1109/8.166534 ↗
7. Design of circular patch antennas on ferrite substrates10.1049/ip-map:19981449 ↗
8. Preparation and characterizations of SiO2-coated nanoparticles of MnO·4ZnO·6Fe2O410.1016/j.jmmm.2008.08.073 ↗
9. Mössbauer study of several ferrimagnetic spinels10.1103/PhysRev.187.747 ↗
10. Mössbauer effect study of the spontaneous magnetization of two sublattices of iron in NiFe2O4 ferrite10.1016/0022-3697(67)90093-5 ↗
11. Mössbauer studies of Fe2+ ions in NixFe3−xO410.1016/S0022-3697(72)80440-2 ↗
12. Zn substituted NiFe2O4 with very high saturation magnetization and negligible dielectric loss synthesized via a soft chemical route10.1007/s00339-013-8140-2 ↗
13. Magnetic properties of ferrite-chromite series of nickel and cobalt10.1143/JPSJ.18.1162 ↗
14. Cation distribution and magnetic properties of nickel–chromium ferrites NiCrxFe2−xO4 (0≤ x ≤1.4)10.1002/pssb.200440022 ↗
15. Internal fields in nickel ferrite10.1103/PhysRevLett.18.165 ↗
16. Impurity-induced exaggerated grain growth in Mn–Zn ferrites10.1111/j.1151-2916.1978.tb09325.x ↗
17. Blundell · 2001
18. A least square spectral curve fitting routine for strongly overlapping lorentzians or gaussians10.1016/0010-4655(75)90028-4 ↗
19. Larson · 2004
20. Mossbauer, Raman and X-ray diffraction studies of superparamagnetic NiFe2O4 nanoparticles prepared by sol–gel auto-combustion method10.1016/j.jmmm.2011.03.017 ↗
21. Physico-chemical properties of gamma-irradiated vermiculite and their significance for radiation protection and thermoluminescence10.2138/am-2014-4873 ↗
22. Interpretation of the vibrational spectra of spinels10.1016/0584-8539(67)80023-0 ↗
23. Raman spectroscopic study of magnetite (FeFe2O4): a new assignment for the vibrational spectrum10.1016/S0022-4596(03)00294-9 ↗
24. Raman scattering in spinel structure ferrites10.1016/0025-5408(88)90255-3 ↗
25. Short-range B-site ordering in the inverse spinel ferrite NiFe2O410.1103/PhysRevB.82.024104 ↗
26. Kittel · 1976
27. Magnetic nanoparticles: surface effects and properties related to biomedicine applications10.3390/ijms141121266 ↗
28. Surface effects in metallic iron nanoparticles10.1103/PhysRevLett.72.282 ↗
29. The effect of easy axis misorientation on the low induction hysteresis properties of non-oriented electrical steels10.1016/j.jmmm.2015.01.067 ↗
30. Role of Co–Cr substitution on the structural, electrical and magnetic proper of nickel nanoferrites synthesized by the chemical co-precipitation method10.1016/j.materresbull.2011.12.017 ↗
31. The Néel theory of ferrimagnetism10.1119/1.1934006 ↗
32. Stability and magnetism of vacancy in NiO: A GGA+U study10.1140/epjb/e2008-00303-x ↗
33. Role of vacancies in transport and magnetic properties of nickel ferrite thin films10.1088/0022-3727/43/26/265001 ↗
34. Maddock · 1997
35. Menil · J. Phys. Chem. Solids · 1985 · 46 · 76310.1016/0022-3697(85)90001-0 ↗
36. Mössbauer study of copper–manganese ferrites in an external magnetic field10.1088/0022-3719/16/3/019 ↗
37. Low temperature route to the multiferroic FeAlO3: XRD and Mössbauer characterizations10.1007/s10751-008-9889-0 ↗
38. Recoilless-fraction ratios for Fe57 in octahedral and tetrahedral sites of a spinel and a garnet10.1103/PhysRev.183.383 ↗
39. Mössbauer spectroscopy of stoichiometric and non-stoiciometric magnetite10.1016/0022-3697(69)90217-0 ↗
40. Application of Mössbauer Spectroscopy
41. NO2-assisted molecular-beam epitaxy of Fe3O4, Fe3−δO4, and γ-Fe2O3 thin films on MgO(100)10.1103/PhysRevB.60.11193 ↗
42. UV pulsed laser deposition of magnetite thin films10.1016/j.mseb.2004.12.037 ↗
43. A Mössbauer study of conduction in magnetite