Exchange-coupling effect in hard/soft SrTb0.01Tm0.01Fe11.98O19/AFe2O4 (where A = Co, Ni, Zn, Cu and Mn) composites
Source abstract
Abstract
Abstract In this study, series of hard/soft SrTb0.01Tm0.01Fe11.98O19/AFe2O4 (where A = Co, Ni, Zn, Cu and Mn) composites were fabricated via a single-pot citrate sol-gel approach. The structure, morphology and magnetic properties of prepared composite samples were investigated via X-ray diffraction (XRD), scanning and transmission electron microscopes (SEM - TEM) and vibrating sample magnetometer (VSM). The XRD analysis of all composite samples showed the co-existence of both hard (Sr hexaferrite) and soft (spinel ferrites) ferrite phases with minor impurity. TEM micrographs displayed well-distinguished particles of SrM and AFe2O4 with different symmetry. The magnetic M − H hysteresis loops were performed at room temperature (RT; T = 300 K) and low temperature (T = 10 K) using VSM instrument. The magnitudes of various magnetic parameters including saturation magnetization (Ms), squareness ratio (SQR = Mr/Ms), remanence (Mr) and coercivity (Hc) were determined. M − H loops revealed smoothed curves and the dM/dH versus H curves exposed only a single peak, indicating that the exchange-coupling effect was accomplished in one-step. Moreover, the various composites showed relatively high Ms, Mr, and Hc values. The obtained results revealed the occurrence of exchange-coupling effect among soft and hard magnetic phases. The magnetic properties of various hard/soft SrTb0.01Tm0.01Fe11.98O19/AFe2O4 composites (where A = Co, Ni, Zn, Cu and Mn) were evaluated also by ZFC-FC magnetization measurements with respect to different soft phases. A peak temperature in ZFC curves occurred for various prepared composites. This peak is attributed to competition of the movement of magnetic domain walls and thermal activation. The present study offers a simple but efficient route for the fabrication of exchange-coupled nanocomposites with the chemical formula SrFe11.98Tb0.01Tm0.01O19/AFe2O4 (where A = Co, Ni, Zn, Cu and Mn) having controllable magnetic properties. It was found that the SrTb0.01Tm0.01Fe11.98O19/CoFe2O4 composite sample displayed the strongest exchange-coupling behavior among the different prepared composite products.
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 (60)
Show source-provided references
1. Synthesis and characterization of BaFe12O19/Fe3O4 and BaFe12O19/Fe/Fe3O4 magnetic nano-composites10.1016/j.powtec.2012.01.015 ↗
2. Synthesis, structure and magnetic properties of SrFe12O19/La1-xCaxMnO3 hard/soft phase composites
3. Room-temperature superparamagnetism and enhanced photocatalytic activity of magnetically reusable spinel ZnFe2O4 nanocatalysts10.1007/s10948-017-4061-1 ↗
4. Comparative study of structural, morphological, magneto-optical and photo-catalytic properties of magnetically reusable spinel MnFe2O4 nano-Catalysts10.1166/jnn.2018.14669 ↗
5. A simple aloe vera plant-extracted microwave and conventional combustion synthesis: morphological, optical, magnetic and catalytic properties of CoFe2O4 nanostructures10.1016/j.molstruc.2014.07.054 ↗
6. The exchange-spring magnet: a new material principle for permanent magnets10.1109/20.102931 ↗
7. Magnetic properties of hard-soft SrFe10Al2O19/Co0.8Ni0.2Fe2O4 ferrite synthesized by one-pot sol-gel auto-combustion10.1016/j.jmmm.2016.05.050 ↗
8. Magnetic hard/soft nanocomposite ferrite aligned hollow microfibers and remanence enhancement10.1016/j.jcis.2010.11.020 ↗
9. Improvement on the magnetic and dielectric behavior of hard/soft ferrite nanocomposites10.1016/j.molstruc.2017.09.089 ↗
10. Mossbauer investigation of Sc substituted barium hexaferrite10.1007/BF01197677 ↗
11. Magnetic properties of hexagonal ferrites with weak exchange coupling between sublattices
12. Structural, morphological and magnetic properties of hard/soft SrFe12-xVxO19/(Ni0.5Mn0.5Fe2O4)y nanocomposites: effect of vanadium substitution10.1016/j.jallcom.2018.07.212 ↗
13. Exchange spring magnetic behavior of Sr0.3Ba0.4Pb0.3Fe12O19/(CuFe2O4)x nanocomposites fabricated by a one-pot citrate sol-gel combustion method10.1016/j.jallcom.2018.05.232 ↗
14. Structure and magnetic properties of mechanically alloyed SmxCo1−x10.1016/0925-8388(93)90064-T ↗
15. Fabrication of bulk nanostructured permanent magnets with high energy density: challenges and approaches10.1039/C6NR09464C ↗
16. Synthesis of magnetically exchange coupled CoFe2O4/CoFe2 core/shell composite particles through spray pyrolysis10.1016/j.jallcom.2017.03.037 ↗
17. Development of a novel one-pot synthetic method for the preparation of (Mn0.2Ni0.4Zn0.4Fe2O4)x–(BaFe12O19)1–x nanocomposites and the study of their microwave absorption and magnetic properties10.1039/C4RA07145J ↗
18. Synthesis and magnetic study of magnetically hard-soft SrFe12-yAlyO19-x Wt% Ni0.5Zn0.5Fe2O4 nanocomposites10.1063/1.4978398 ↗
19. Strain induced exchange spring magnetic behavior in amorphous (TbDy)Fe2 thin films10.1063/1.4974964 ↗
20. Photocatalytic degradation of methylene blue dye and magneto-optical studies of magnetically recyclable spinel NixMn1-xFe2O4 (x = 0.0–1.0) nanoparticles10.1016/j.molstruc.2016.02.032 ↗
21. Hibiscus rosa-sinensis leaf extracted green methods, magneto-optical and catalytic properties of spinel CuFe2O4 nano- and microstructures10.1007/s10904-015-0203-8 ↗
22. Synthesis of novel hard/soft ferrite composites particles with improved magnetic properties and exchange coupling, Process10.2298/PAC1803248T ↗
23. Improvement on the magnetic and dielectric behavior of hard/soft ferrite nanocomposites10.1016/j.molstruc.2017.09.089 ↗
24. Energy product enhancement in sufficiently exchange-coupled nanocomposite ferrites10.1016/j.jmmm.2018.07.018 ↗
25. Almessiere
26. Almessiere
27. Enhancements of saturation magnetization and coercivity in Ni0.5Zn0.5Fe2O4/SrFe12O19 composite powders by exchange-coupling mechanism10.1007/s10854-019-01527-2 ↗
28. Electromagnetic properties and humidity-sensing studies of magnetically recoverable LaMgxFe1−xO3−δ perovskites nano-photocatalysts by sol-gel route10.1007/s10948-016-3465-7 ↗
29. Fundamental study of LaMgxCr1−xO3−δ perovskites nano-photocatalysts: sol-gel synthesis, characterization and humidity sensing10.1007/s11814-015-0282-9 ↗
30. Synthesis and characterization of Co1–2xNixMnxCeyFe2–yO4 nanoparticles
31. Calcination effect on the magneto-optical properties of vanadium substituted NiFe2O4 nanoferrites10.1007/s10854-019-01243-x ↗
32. Magneto-optical properties of Cu1−xZnxFe2O4 nanoparticles10.1016/j.spmi.2014.06.021 ↗
33. Mössbauer studies and magnetic properties of Cubic CuFe2O4 nanoparticles10.1007/s10948-018-4733-5 ↗
34. Magneto-optical properties of Mn3+ substituted Fe3O4 nanoparticles10.1016/j.ceramint.2015.05.034 ↗
35. Exchange spring magnetic behavior of Sr0.3Ba0.4Pb0.3Fe12O19/(CuFe2O4)x nanocomposites fabricated by a one-pot citrate sol-gel combustion method10.1016/j.jallcom.2018.05.232 ↗
36. Structural, morphological and magnetic properties of hard/soft SrFe12-xVxO19/(Ni0.5Mn0.5Fe2O4)y nanocomposites: effect of vanadium substitution10.1016/j.jallcom.2018.07.212 ↗
37. Enhancements of saturation magnetization and coercivity in Ni0.5Zn0.5Fe2O4/SrFe12O19 composite powders by exchange-coupling mechanism10.1007/s10854-019-01527-2 ↗
38. Impact of Nd-Zn co-substitution on microstructure and magnetic properties of SrFe12O19 nanohexaferrite10.1016/j.ceramint.2018.09.272 ↗
39. Effect of Nb3+ ion substitution on the magnetic properties of SrFe12O19 hexaferrites10.1007/s10854-019-01464-0 ↗
40. Investigation of the effects of Tm3+ on the structural, microstructural, optical, and magnetic properties of Sr hexaferrites10.1016/j.rinp.2019.102166 ↗
41. Morphology and magnetic traits of strontium nanohexaferrites: effects of manganese/yttrium co-substitution10.1016/j.jre.2018.09.014 ↗
42. Magnetic properties of hard-soft SrFe10Al2O19/Co0.8Ni0.2Fe2O4 ferrite synthesized by one-pot sol–gel auto-combustion10.1016/j.jmmm.2016.05.050 ↗
43. Preparation and properties of SrFe12O19/ZnFe2O4 core/shell nano-powder microwave absorber10.1080/10584587.2014.901882 ↗
44. Synthesis and magnetic properties of hard/soft SrFe12O19/Ni0.7Zn0.3Fe2O4 nanocomposite magnets10.1016/j.jmmm.2012.05.008 ↗
45. Microstructural and magnetic investigation of vanadium-substituted Sr-nanohexaferrite10.1016/j.jmmm.2018.09.054 ↗
46. Magneto-optical properties of rare earth metals substituted Co-Zn spinel nanoferrites10.1016/j.ceramint.2018.10.260 ↗
47. Chen · J. Mater. Sci. Mater. Electron. · 2019 · 30 · 157910.1007/s10854-018-0429-7 ↗
48. Magnetic properties of c-axis oriented Sr0.8La0.2Fe11.8Co0.2O19 ferrite film prepared by chemical solution deposition10.1016/j.jmmm.2010.07.013 ↗
49. The influence of Al content and CaO–SiO2 on the magnetic and structural properties of Al-substituted Ni ferrites10.1016/j.jallcom.2009.03.018 ↗
50. Tailoring structure and magnetic characteristics of strontium hexaferrite via Al doping engineering10.1016/j.jmmm.2016.08.066 ↗
51. Magnetic study of M-type doped barium hexaferrite nanocrystalline particles10.1063/1.4858383 ↗
52. Domain wall pinning at random inhomogeneities10.1109/TMAG.1983.1062778 ↗
53. On the temperature dependence of domain wall pinning field in soft, uniaxial magnetic materials10.1088/0022-3727/35/7/310 ↗
54. The hydrothermal synthesis of super-paramagnetic barium hexaferrite particles10.1016/j.matchemphys.2011.02.037 ↗
55. Attractive microwave-absorbing properties of La1− xSrxMnO3 manganite powders10.1016/S0254-0584(02)00039-1 ↗
56. Static magnetic properties of nanocrystalline Co-Ti doped barium ferrite BaFe12-2xCoxTixO19 (x= 0.8)10.1109/20.312383 ↗
57. Magnetic study of M‐type doped barium ferrite nanocrystalline powders10.1063/1.354558 ↗
58. AC susceptibility and hyperfine interactions of vanadium substituted barium nanohexaferrites10.1016/j.ceramint.2018.06.242 ↗
59. Effects of synthesis route on the structural and magnetic properties of Sr1-xRExFe12O19 nanocrystalline hexaferrites10.1007/s00339-019-2762-y ↗
60. Structural and magnetic properties of SrFe12O19 hexaferrite synthesized by a modified chemical co-precipitation method10.1016/j.jmmm.2008.06.009 ↗