High dielectric constant of NiFe2O4–LaFeO3 nanocomposite: Interfacial conduction and dielectric loss
Source abstract
Abstract
Abstract Materials exhibiting colossal dielectric constant are the most sought-after materials due to their variety of applications in various electronics industries. NiFe2O4 and LaFeO3 belonging to the spinel and perovskite structures, respectively, were coupled into a nanocomposite by adapting a one-pot sol-gel synthesis. The ratio of NiFe2O4:LaFeO3 was varied and the synthesized materials were studied for their dielectric behaviors. Interestingly, among the samples studied, the nanocomposite with the ratio of 1:2 of NiFe2O4–LaFeO3 exhibited a high dielectric constant value of 10390 at a frequency of 1 kHz with a several-fold increase in conductivity. The high conductivity resulted in a high dielectric loss. The origin of such a high dielectric constant and loss have been attributed to the Maxwell-Wagner type space charge polarization arising from the microstructure that consists of large and continuous grain boundaries, and the conducting phase at the interface, respectively.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Multiferroics and related materials · Dielectric properties of ceramics · Ferroelectric and Piezoelectric Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (50)
Show source-provided references
1. Giant dielectric constant materials and their applications
2. High dielectric constant in ACu3Ti4O12 and ACu3Ti3FeO1210.1006/jssc.2000.8703 ↗
3. Giant dielectric constant response in a copper titanate10.1016/S0038-1098(00)00182-4 ↗
4. CaCu3Ti4O12: one-step internal barrier layer capacitor10.1063/1.1463211 ↗
5. A polaronic stacking fault defect model for CaCu3Ti4O12 material: an approach for the origin of the huge dielectric constant and semiconducting coexistent features10.1088/0022-3727/42/5/055404 ↗
6. Impedance spectroscopic studies on NiFe2O4 with different morphologies: microstructure vs. dielectric properties10.1016/j.ceramint.2012.08.078 ↗
7. Impedance spectroscopic studies, dielectric properties and microstructure of rutile type chromium niobate CrNbO410.1016/j.ceramint.2014.04.053 ↗
8. Effect of antimony substitution on structural and electrical properties of LaFeO310.1016/j.jmatprotec.2008.06.054 ↗
9. Polaronic relaxation in LaFeO310.1016/j.matlet.2012.08.079 ↗
10. Physics of the multi-functionality of lanthanum ferrite ceramics10.1063/1.4879899 ↗
11. Origin of colossal dielectric response in LaFeO310.1016/j.actamat.2010.10.066 ↗
12. Microstructure and properties of sol-gel derived PbTiO3/NiFe2O4 multiferroic composite thin film with two nano-crystalline phases dispersed homogeneously10.1016/j.jallcom.2010.05.025 ↗
13. Nanostructural and lattice contributions to multiferroism in NiFe2O4/BaTiO310.1016/j.matchemphys.2016.02.058 ↗
14. Lead-free (K, Na, Li)NbO3/NiFe2O4 thin films by pulsed laser deposition: Structure, dielectric, magnetic and magnetodielectric behavior10.1016/j.jallcom.2019.04.201 ↗
15. Synthesis and room-temperature multiferroic properties of lead-free Bi4Ti3O12/NiFe2O4 nanocomposite films10.1016/j.ceramint.2020.03.281 ↗
16. One-pot synthesis of LaFeO3-NiFe2O4 nanocomposite ceramic by egg-white method and its magnetic and dielectric properties10.1016/j.solidstatesciences.2017.08.002 ↗
17. Novel perovskite-spinel composite approach to enhance the magnetization of LaFeO310.1039/C4RA11619D ↗
18. Emergent phenomena at oxide interfaces10.1038/nmat3223 ↗
19. Holland · Mineral. Mag. · 1997 · 61 · 6510.1180/minmag.1997.061.404.07 ↗
20. Constructive coupling between BiFeO3 and CoFe2O4 promising magnetic and dielectric properties10.1016/j.jmrt.2019.11.069 ↗
21. West · 1989
22. Synthesis and study of multiferroic properties of ZnFe2O4–BiFeO3 nanocomposites10.1016/j.jallcom.2009.10.275 ↗
23. Templated fabrication of NiFe2O4 nanorods: Characterization, magnetic and electrochemical properties10.1016/j.solidstatesciences.2008.05.001 ↗
24. Ferrite with extraordinary electric and dielectric properties prepared from self-combustion technique
25. Low temperature sintering of LaNbO4 proton conductors from freeze-dried precursors10.1016/j.jeurceramsoc.2011.11.027 ↗
26. Grain size effect on the Néel temperature and magnetic properties of nanocrystalline NiFe2O4 spinel10.1016/S0304-8853(01)00928-3 ↗
27. Raman scattering in spinel structure ferrites10.1016/0025-5408(88)90255-3 ↗
28. Raman spectroscopy of rare-earth orthoferrites RFeO3 (R = La, Sm, Eu, Gd, Tb, Dy)10.1103/PhysRevB.94.214103 ↗
29. Synthesis and thermal, structural, dielectric, magnetic, and magnetoelectric studies of BiFeO3-MgFe2O4 nanocomposites10.1111/jace.13316 ↗
30. Development of BiFeO3/MnFe2O4 ferrite nanocomposites with enhanced magnetic and electrical properties10.1039/D0NA00255K ↗
31. On the dispersion of resistivity and dielectric constant of some semiconductors at audio frequencies10.1103/PhysRev.83.121 ↗
32. Maxwell's treatise on electricity and magnetism10.1070/PU1981v024n11ABEH004793 ↗
33. Effects of the rare-earth ions on some properties of a nickel-zinc ferrite10.1088/0953-8984/6/29/013 ↗
34. NiFe2O4-ZnO semiconducting nanocomposites: studies of room temperature magnetoelectric coupling and electronic transport10.1016/j.matchemphys.2019.05.082 ↗
35. Effect of Mn substitution on electrical and magnetic properties of Bi0.9La0.1FeO310.1063/1.3158121 ↗
36. Magnetic domain-wall induced ferroelectric polarization in rare-earth orthoferrites AFeO3 (A = Lu, Y, Gd): First-principles calculations10.1039/C9TC02501D ↗
37. Morphologically controlled dielectric dispersion and energy density optimization in Co/Ni spinel ferrites
38. Investigation on impedance response and dielectric relaxation of Ni–Zn ferrites prepared by self-combustion technique10.1016/j.jallcom.2017.02.241 ↗
39. Cation arrangement in a few oxides with crystal structures of the spinel type10.1002/recl.19360550608 ↗
40. Dielectric, magnetic and magnetoelectric properties of multiferroic BiFe0.5Cr0.5O3-NiFe2O4 composites10.1063/1.3360353 ↗
41. Barsoukov · 2005
42. Dielectric and magnetic properties of nickel ferrite ceramics using crystalline powders derived from DL alanine fuel in sol–gel auto-combustion10.1016/j.ceramint.2015.03.014 ↗
43. Liquid-phase sintered bismuth ferrite multiferroics and their giant dielectric constant10.1016/j.ceramint.2019.04.220 ↗
44. Effect of electrode resistance on dielectric and transport properties of multiferroic superlattice: A impedance spectroscopy study10.1063/1.4746026 ↗
45. New multiferroics BiFe1-2xAlxMnxO3 nanoparticles: synthesis and evaluation of Various structural, physical, electrical, dielectric and magnetic parameters10.1016/j.jallcom.2013.12.082 ↗
46. Structure, non-stoichiometry, valence of ions, dielectric and magnetic properties of single-phase Bi0.9La0.1FeO3−δ multiferroics10.1016/j.jmmm.2019.03.095 ↗
47. Effect of Zn doping on structural, magnetic and dielectric properties of LaFeO3 synthesized through sol–gel auto-combustion process10.1016/j.materresbull.2013.07.028 ↗
48. Electrical conductivity of LaFeO3-xFe3O4 (x = 0.0, 0.1, 0.2, 0.3, and 0.4) composites materials10.1063/1.4991122 ↗
49. High thermal stability and colossal permittivity of novel solid solution LaFeO3/CaTiO310.1016/j.matchemphys.2020.123239 ↗
50. Compositional dependence of ferromagnetic and magnetoelectric effect properties in BaTiO3–BiFeO3–LaFeO3 solid solutions10.1039/C7RA10563K ↗