Tuning the structural, electronic, and magnetic properties of CoFe2O4 thin films via swift heavy ion irradiation
Source abstract
Abstract
The present work explores the effect of 120 MeV Au9+ ion irradiation on the structural, electronic, and magnetic behavior of CoFe2O4 (CFO) thin films, prepared by Pulsed Laser deposition (PLD) technique. Grazing incidence X-ray diffraction (GIXRD) analysis revealed that with increasing ion fluences there is peak broadening and decrease in diffraction intensity, which results reduction in crystallite size and partial amorphization. X-ray photoelectron spectroscopy (XPS) analysis showed an increase in oxygen vacancy concentration, accompanied by partial reduction of Co and Fe cations. A decrease in saturation magnetization and enhanced coercivity has been observed with increasing ion fluence, consistent with defect-induced pinning. Law of Approach to Saturation (LAS) fitting on the hysteresis curve has been carried out for the estimation of the effective anisotropy constant (Keff), which provides the quantitative evidence of irradiation-induced magnetic anisotropy enhancement. X-ray magnetic circular dichroism (XMCD) confirmed element-specific changes in magnetic moments. The observed results are explained in terms of disruption in superexchange interactions of Co2+−O2−−Fe3+ after ion irradiation due to significant modifications in the oxidation states of Co and Fe ions within CFO thin films.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic Properties and Synthesis of Ferrites · Magnetic properties of thin films · Fusion materials and technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (75)
Show source-provided references
1. Doping Mn ions at Co sites to improve resistive switching property of inverse spinel CoFe2O4 resistive random access memory devices10.1016/j.apsusc.2025.162724 ↗
2. Electronic and magnetic properties of FeCr2O4 nanoparticles by advanced synchrotron based soft X-ray magnetic circular dichroism10.1016/j.physb.2022.414373 ↗
3. Sputter deposited strontium ferrite films with c-axis oriented normal to the film plane10.1063/1.111845 ↗
4. Study of interfacial engineering on exchange bias effect in NiO/CoFe2O4 heterostructures10.1016/j.ssc.2025.116019 ↗
5. Magnetic materials and devices for the 21st century: stronger, lighter, and more energy efficient10.1002/adma.201002180 ↗
6. Nanocrystalline Co-ferrite films with high perpendicular coercivity10.1063/1.2196472 ↗
7. Effects of heat treatment on the structural, dielectric and magnetic properties of ZnO@CoFe2O4 nanocomposites10.1016/j.ceramint.2024.01.131 ↗
8. Engineered magnetic shape anisotropy in BiFeO3-CoFe 2O4 self-assembled thin films10.1021/nn4003506 ↗
9. Effect of calcination temperature on the structural, morphological, and magnetic properties of CuFe2O4/CoFe2O4/CeO2 nanocomposites10.1016/j.ceramint.2025.04.208 ↗
10. Comparative study of Co3O4(111), CoFe2O4(111), and Fe3O4(111) thin film electrocatalysts for the oxygen evolution reaction10.1038/s41467-023-40461-0 ↗
11. Synthesis and characterization of CoFe2O4 magnetic nanoparticles prepared by temperature-controlled coprecipitation method10.1016/S0921-4526(03)00322-3 ↗
12. Towards high performance CoFe2O4 isotropic nanocrystalline powder for permanent magnet applications10.1063/1.4969064 ↗
13. Studying the defects in spinel compounds: discovery, formation mechanisms, classification, and influence on catalytic properties10.3390/nano14201640 ↗
14. Probing temperature-dependent magnetism in cobalt and zinc ferrites: a study through bulk and atomic-level magnetic measurements for spintronics10.1016/j.jmmm.2024.171867 ↗
15. Swift heavy ion irradiation-induced modifications in structural, magnetic and electrical transport properties of epitaxial magnetite thin films10.1063/1.2222066 ↗
16. Study of training effect by Kerr microscopy measurement in Fe thin film implanted with F-ions10.1016/j.physb.2022.413733 ↗
17. Swift heavy ion induced surface modification for tailoring coercivity in Fe-Ni based amorphous thin films10.1063/1.3075581 ↗
18. Magnetization enhancement in nanocrystalline Co 0.4 Zn 0.6 Fe 2 O 4 by 200 MeV Ag 15+ ion irradiation10.1080/10420150.2011.553232 ↗
19. Tailoring optical properties of TiO2-Cr co-sputtered films using swift heavy ions10.1016/j.apsusc.2018.01.003 ↗
20. Dissolution of Mg(OH)2 by swift heavy ion irradiation in CoFe2O4/MgO/ZnFe2O4 multilayer thin films10.1016/j.matlet.2023.134738 ↗
21. Effects of swift heavy ion beams on the physical and chemical properties of advanced materials10.1201/9781003491439-6 ↗
22. Onset of size independent cationic exchange in nano-sized CoFe2O4 induced by electronic excitation10.1016/j.jallcom.2015.04.227 ↗
23. Modification of magnetic anisotropy induced by swift heavy ion irradiation in cobalt ferrite thin films10.1016/j.jmmm.2015.06.080 ↗
24. Sharma
25. Si9+ ion-irradiation induced modification of structural and magnetic properties of Zn-Nanoferrite10.1149/2162-8777/ac6f1b ↗
26. Effect of thermal spike energy created in CuFe2O4 by 150 MeV Ni11+ swift heavy ion irradiation10.1016/j.nimb.2011.03.006 ↗
27. V Gafton
28. Mechanistic insights into the interaction between energetic oxygen ions and nanosized ZnFe2O4: XAS-XMCD investigations10.1039/C8CP00368H ↗
29. Modification induced by electronic excitation in CoFe2O4 thin films: structural, morphological, and magnetic properties10.1002/appl.202300136 ↗
30. Effect of Cr-substitution on vanadium dioxide thin films studied by soft X-ray magnetic circular dichroism10.1016/j.jallcom.2022.165515 ↗
31. SRIM – the stopping and range of ions in matter (2010)10.1016/j.nimb.2010.02.091 ↗
32. Synthesis, characterization and electrical properties of mesoporous nanocrystalline CoFe2O4 as a negative electrode material for lithium battery applications10.1007/s10854-017-7650-7 ↗
33. Precise calculation of crystallite size of nanomaterials: a review10.1016/j.jallcom.2023.171914 ↗
34. Tailoring the properties of spray deposited V2O5 thin films using swift heavy ion beam irradiation10.1016/j.net.2020.04.013 ↗
35. Irradiation-induced modifications and PEC response – a case study of SrTiO3 thin films irradiated by 120 MeV Ag9+ ions10.1016/j.ijhydene.2011.01.149 ↗
36. Effect of La3+ substitution on the structural and magnetocrystalline anisotropy of nanocrystalline cobalt ferrite (CoFe2−xLaxO4)10.1016/j.ceramint.2012.02.065 ↗
37. Effect of defects, magnetocrystalline anisotropy, and shape anisotropy on magnetic structure of iron thin films by magnetic force microscopy10.1063/1.4976580 ↗
38. Swift heavy ion induced surface modification for tailoring coercivity in Fe-Ni based amorphous thin films10.1063/1.3075581 ↗
39. Evolution of magnetic anisotropy by O ion implantation in Fe/Co/Fe trilayar10.1016/j.physb.2019.06.036 ↗
40. Origin of magnetism via cation vacancy defects in non-stoichiometric NiCo2O4 nanoparticles: a synchrotron-based x-ray absorption and x-ray magnetic circular dichroism spectroscopic study10.1063/5.0234829 ↗
41. Synthesis-dependent structural and magnetic properties of monodomain cobalt ferrite nanoparticles10.3390/met14070833 ↗
42. Modification of magnetic anisotropy induced by swift heavy ion irradiation in cobalt ferrite thin films10.1016/j.jmmm.2015.06.080 ↗
43. On defects' role in enhanced perpendicular magnetic anisotropy in Pt/Co/Pt, induced by ion irradiation10.1088/1361-648X/ab0351 ↗
44. Evolution of magnetic anisotropy by O ion implantation in Fe/Co/Fe trilayar10.1016/j.physb.2019.06.036 ↗
45. Effect of 100 kGy γ-irradiation on the structural, electrical and magnetic properties of CoFe2O4 NPs10.1016/j.jallcom.2016.03.212 ↗
46. Colossal intrinsic exchange bias from interfacial reconstruction in epitaxial CoFe2 O4/Al2 O3 thin films10.1103/PhysRevB.103.224405 ↗
47. Electronic structure studies of the spinel CoFe2O4 by X-ray photoelectron spectroscopy10.1016/j.apsusc.2008.05.067 ↗
48. Annealing temperature effects on the cation distribution in CoFe2O4 nanofibers10.1016/j.apsusc.2020.147440 ↗
49. Effect of oxygen vacancies in the magnetic properties of the amorphous CoFe2O4 films10.1016/j.jnoncrysol.2016.11.002 ↗
50. Oxygen vacancy-induced short-range ordering as a sole mechanism for enhanced magnetism of spinel ZnFe2O4 prepared via a one-step treatment10.1016/j.ceramint.2021.03.100 ↗
51. Oxygen-deficient hematite nanorods as high-performance and novel negative electrodes for flexible asymmetric supercapacitors10.1002/adma.201305851 ↗
52. Cr doping-induced ferromagnetism in the spin-glass Cd1−xMnxTe studied by x-ray magnetic circular dichroism10.1016/j.physb.2022.414129 ↗
53. Electronic, orbital, and spin reconstructions at the interface between metallic La0.7Sr0.3MnO3and charge-disproportionated insulator SrCoO2.510.1021/acs.jpcc.1c05163 ↗
54. High-temperature insulating ferromagnetic state in charge-disproportionated and spin-state-disproportionated strained SrCoO2.5 thin film10.1063/5.0188767 ↗
55. Electronic and magnetic properties of chemical solution deposited BiFeO3 thin film: a soft X-ray magnetic circular dichroism study10.1007/s10948-021-05840-y ↗
56. Negative charge-transfer energy in SrCoO2.5Thin films: an interplay between O-2p hole density, charge-transfer energy, charge disproportionation, and ferromagnetic ordering10.1021/acsaelm.0c00698 ↗
57. Time evolution of the structural, electronic, and magnetic phases in relaxed SrCoO3Thin films10.1021/acsaelm.1c00831 ↗
58. Anomalous magnetic properties of Fe3O4 nanostructures on GaAs substrate probed using X-ray magnetic circular dichroism10.1016/j.jmmm.2019.03.041 ↗
59. X-Ray spectroscopy of cobaltites10.1134/S0031918X21020046 ↗
60. Experimental confirmation of the X-Ray magnetic circular dichroism sum rules for iron and cobalt10.1103/PhysRevLett.75.152 ↗
61. X-ray circular dichroism and local magnetic fields10.1103/PhysRevLett.70.694 ↗
62. Negative charge-transfer energy in SrCoO2.5Thin films: an interplay between O-2p hole density, charge-transfer energy, charge disproportionation, and ferromagnetic ordering10.1021/acsaelm.0c00698 ↗
63. Exploring swift heavy ion-induced perpendicular magnetic anisotropy and tunnel magnetoresistance in CoFe2O4/MgO/ZnFe2O4 multilayers: X-ray magnetic circular dichroism study10.1063/9.0000908 ↗
64. Thermal spikes and activated processes10.1080/00337577608233050 ↗
65. Comparison of two thermal spike models for ion–solid interaction10.1016/j.nimb.2010.11.009 ↗
66. General features of latent track formation in magnetic insulators irradiated with swift heavy ions10.1103/PhysRevB.51.8026 ↗
67. Ion tracks and nanohillocks created in natural zirconia irradiated with swift heavy ions10.3390/ma17030547 ↗
68. Evidence for amorphization of a metallic alloy by ion electronic energy loss10.1103/PhysRevLett.65.875 ↗
69. Thermal spike model applied to the irradiated yttrium iron garnet: mean diffusion length of the energy deposited on the electrons10.1016/S0168-583X(96)00666-0 ↗
70. Defect induced modification of structural, topographical and magnetic properties of zinc ferrite thin films by swift heavy ion irradiation10.1016/j.nimb.2017.01.046 ↗
71. Distribution of damage along an MeV ion track10.1016/0168-583X(93)95879-A ↗
72. Formation of latent tracks and their effects on the magnetic properties of nanosized zinc ferrite10.1016/j.jmmm.2013.09.050 ↗
73. Irradiation induced texturing in the Mg0.95Mn0.05Fe2O4 ferrite thin film10.1016/j.tsf.2008.12.011 ↗
74. Role of vacancies in transport and magnetic properties of nickel ferrite thin films10.1088/0022-3727/43/26/265001 ↗
75. Valence change bipolar resistive switching accompanied with magnetization switching in CoFe2O4 thin film10.1038/s41598-017-12579-x ↗