Spring like ferromagnetic behavior of xLi0.5Fe2.5O4–(1 − x)SrFe2O4 nanoferrite thin films
Source abstract
Abstract
The role of hard/soft ferrites composite of xLi0.5Fe2.5O4–(1 − x)SrFe2O4 (LSF) (x = 0.4, 0.5, and 0.6) on the magnetic exchange-spring systems have been studied. LSF thin films were prepared by sol–gel combined metallo organic decomposition method by using spin coating technique. The effect of annealing temperature on magnetic hysteresis has been studied. The phase structure and lattice parameters of both Li0.5Fe2.5O4 and SrFe2O4 ferrite have been confirmed by x-ray diffraction analysis. For nanostructural confirmation of LSF grains, the atomic force microscopy is used. The average size of LSF grains with different composition and annealing temperatures is lies in the range of 76–550 nm. The magnetic measurements show spring like vibrations in both field and temperature dependent magnetization. The cole–cole plot of impedance spectroscopy has been used to find the grain size effect on magnetic properties of LSF grains.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic Properties and Synthesis of Ferrites · Multiferroics and related materials · Magnetic Properties of Alloys
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (24)
Show source-provided references
1. Ahmed MA, Okasha N, El-Dek SI (2008) Preparation and characterization of nanometric Mn ferrite via different methods. Nanotechnology 19:06560310.1088/0957-4484/19/6/065603 ↗
2. Casoli F, Nasi L, Albertini F, Fabbrici S, Bocchi C, Germini F, Luches P, Rota A, Valeri S (2008) Morphology evolution and magnetic properties improvement in FePt epitaxial films by in situ annealing after growth. J Appl Phys 103:04391210.1063/1.2885339 ↗
3. Choi Y, Jiang JS, Ding Y, Rosenberg RA, Pearson JE, Bader SD, Zambano A, Murakami M, Takeuchi I, Wang ZL, Liu JP (2007) Role of diffused Co atoms in improving effective exchange coupling in Sm-Co/Fe spring magnets. Phys Rev B 75:10443210.1103/PhysRevB.75.104432 ↗
4. Dobin AY, Richter HJ (2006) Domain wall assisted magnetic recording. Appl Phys Lett 89:06251210.1063/1.2335590 ↗
5. Inaba Y, Shimatsu T, Kitakami O, Sato H, Oikawa T, Muraoka H, Aoi H, Nakamura Y (2005) Preliminary study on (CoPtCr/NiFe)-SiO2 hard/soft-stacked perpendicular recording media. IEEE Trans Magn 41:313610.1109/TMAG.2005.854848 ↗
6. Lee J, Suess D, Schrefl T, Oh KH, Fidler J (2008) Contribution of the shrunk interface and the convex surface of grains on magnetic behavior in granular film. J Appl Phys 103:07F51910.1063/1.2833302 ↗
7. Li YM, Liao RH, Jiang XP, Zhang YP (2009) Impedance spectroscopy and dielectric properties of Na0.5Bi0.5TiO3-K0.5Bi0.5TiO3 ceramics. J Alloys Compd 484:961–96510.1016/j.jallcom.2009.05.087 ↗
8. Livshitz B, Choi R, Inomata A, Bertram HN, Lomakin V (2008) Fast precessional reversal in perpendicular composite patterned media. J Appl Phys 103:07C51610.1063/1.2837504 ↗
9. Lomakin V, Choi R, Livshitz B, Li S, Inomata A, Bertram HN (2008) Dual-layer patterned media “ledge” design for ultrahigh density magnetic recording. Appl Phys Lett 92:02250210.1063/1.2831732 ↗
10. Mukherjee S, Berger L (2006) Switching of composite media by wall propagation. J Appl Phys 99:08Q90910.1063/1.2177389 ↗
11. Murakami RK, Villas-Boas V, Chen M, Yelon WB (2000) Structural and magnetic properties of the exchange-coupled PrFeB alloys. J Appl Phys 87:658210.1063/1.372777 ↗
12. Qiu LJ, Ding J, Shi JZ, Piramanayagam SN, Chen JS (2007) Exchange coupling effects in CoCrPt-SiO2/FeCoTaCr composite media for perpendicular recording. Phys Scr 129:140–14310.1088/0031-8949/2007/T129/032 ↗
13. Soibam I, Phanjoubam S, Prakash C (2009) Magnetic and Mössbauer studies of Ni substituted Li-Zn ferrite. J Magn Magn Mater 321:2779–278210.1016/j.jmmm.2009.04.011 ↗
14. Sonobe Y, Weller D, Ikeda Y, Takano K, Schabes ME, Zeltzer G, Do H, Yen BK, Best ME (2001) Coupled granular/continuous medium for thermally stable perpendicular magnetic recording. J Magn Magn Mater 235:424–42810.1016/S0304-8853(01)00401-2 ↗
15. Suess D (2006) Multilayer exchange spring media for magnetic recording. Appl Phys Lett 89:11310510.1063/1.2347894 ↗
16. Suess D (2007) Micromagnetics of exchange spring media optimization and limits. J Magn Magn Mater 308:183–18710.1016/j.jmmm.2006.05.021 ↗
17. Suess D, Schrefl T, Kirschner RMD, Dorfbauer F, Hrkac G, Fidler J (2005) Exchange spring recording media for areal densities up to 10 Tbit/in2. J Magn Magn Mater 290:551–55410.1016/j.jmmm.2004.11.525 ↗
18. Suess D, Lee J, Fidler J, Schrefl T (2009) Exchange-coupled perpendicular media. J Magn Magn Mater 321:545–55410.1016/j.jmmm.2008.06.041 ↗
19. Verma KC, Negi NS (2010) Magnetoelectric coupling and relaxor ferroelectric properties of Pb0.7Sr0.3(Fe0.012Ti0.988)O3 thin film. Scr Mater 63:89110.1016/j.scriptamat.2010.06.049 ↗
20. Verma KC, Sharma AK, Bhatt SS, Kotnala RK, Negi NS (2009) Synthesis and characterization of nanostructured (Pb1-xSrx)TiO3 thin films by a modified chemical route. Philos Mag 89:2321–233210.1080/14786430903016608 ↗
21. Verma KC, Kotnala RK, Verma V, Negi NS (2010) Nanograins dependent dielectric constant, tunability, phase transition, impedance spectroscopy and leakage current of (Pb1-xSrx)TiO3 thin films. Thin Solid Films 518:3320–332510.1016/j.tsf.2009.10.011 ↗
22. Victora RH, Shen X (2005) Exchange coupled composite media for perpendicular magnetic recording. IEEE Trans Magn 41:2828–283310.1109/TMAG.2005.855263 ↗
23. Wang JP (2008) FePt magnetic nanoparticles and their assembly for future magnetic media. IEEE Trans Magn 96:1847–1863
24. Zhu JG, Tang YH (2006) Modeling the influence of charge traps on single-layer organic light-emitting diode efficiency. J Appl Phys 99:080903