Structural, electronic and magnetic properties of Co-substituted SrFe12O19: A DFT study
Source abstract
Abstract
Abstract The electronic and magnetic properties of M-type strontium hexaferrite are investigated using first-principles density functional theory for both the pure state (SrFe12O19) and Co-substituted SrFe12O19 (Co0.5Sr0.5Fe12O19). The obtained substitution energy of Co0.5Sr0.5Fe12O19 proved the possibility of this substitution. The calculated densities of states (DOS) of pure SrFe12O19 hexaferrite showed a hard magnetic semiconductor behavior with a total magnetic moment of about 40.03 µB. Furthermore, a clear change of the magnetic behavior is observed while substituting SrFe12O19 with Cobalt element, where a polarization at Fermi level is obtained, which characterize the half-metallic materials with an enhancement of the total magnetic moment. Our obtained results could pave the way to further experimental and theoretical investigations on the spintronic applications of M-type strontium hexaferrite.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic Properties and Synthesis of Ferrites · Multiferroics and related materials · Iron oxide chemistry and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (31)
Show source-provided references
1. Hexagonal iron-oxide compounds as permanent-magnet materials
2. BaFe12O19 single-particle-chain nanofibers: preparation, characterization, formation principle, and magnetization reversal mechanism10.1021/nn204342m ↗
3. Electrospun magnetic SrFe12O19 nanofibres with improved hard magnetism
4. Formation and magnetic properties of nanosized PbFe 12 O 19 particles synthesized by citrate precursor technique10.1016/j.jallcom.2006.08.037 ↗
5. Magnetic and dielectric properties of the M-type barium strontium hexaferrite (Ba x Sr1−x Fe12O19) in the RF and microwave (MW) frequency range
6. Strontium ferrite for magnetic recording prepared by self-combustion method
7. Hexagonal ferrites: a review of the synthesis, properties and applications of hexaferrite ceramics10.1016/j.pmatsci.2012.04.001 ↗
8. Synthesis and characterization of barium hexaferrite nanoparticles10.1016/j.jmatprotec.2006.03.015 ↗
9. Adsorption of CO, NH 3, NO, and NO 2 on pristine and defective g-GaN: improved gas sensing and functionalization
10. Transition metal doped puckered arsenene: magnetic properties and potential as a catalyst10.1016/j.physe.2018.12.027 ↗
11. Electronic, magnetism, and optical properties of transition metals adsorbed
12. Magnetic behaviors of 3d transition metal-doped silicane: a first-principle study10.1007/s10948-017-4532-4 ↗
13. Maximum energy product at elevated temperatures for hexagonal strontium ferrite (SrFe 12 O 19) magnet10.1016/j.jmmm.2013.11.032 ↗
14. Structural and magnetic properties of SrFe 12 O 19 hexaferrite synthesized by a modified chemical co-precipitation method10.1016/j.jmmm.2008.06.009 ↗
15. Study of the bipyramidal site in magnetoplumbite-like SrM209 (M=Al, Fe, Ga)10.1016/0022-4596(90)90081-8 ↗
16. Crystal structure refinement, dielectric and magnetic properties of Ca/Pb substituted SrFe12O19 hexaferrites10.1016/j.jmmm.2015.03.078 ↗
17. Dielectric and magnetic properties of Mg-Ti substituted barium hexaferrite10.1016/j.ceramint.2012.12.089 ↗
18. Preparation and magnetic properties of Nd–Co-substituted M-type strontium ferrite by microwave-assisted synthesis method10.1007/s10948-014-2920-6 ↗
19. Synthesis, magnetic and dielectric properties of ErNi doped Sr-hexaferrite nanomaterials for applications in High density recording media and microwave devices10.1016/j.jmmm.2011.07.016 ↗
20. Magnetic properties of Co-Ti substituted barium hexaferrite10.1016/j.jallcom.2012.08.029 ↗
21. Site preference and magnetic properties of Ga/In-substituted strontium hexaferrite: an ab initio study10.1063/1.4936368 ↗
22. Effect of ionic substitutions on the magnetic properties of strontium hexaferrite: a first principles study10.1063/1.4995309 ↗
23. Electronic structure of La–Co substituted strontium hexaferrite (Sr1−xLaxFe12−xCoxO19) permanent magnet10.1109/LMAG.2015.2501285 ↗
24. Substantial enhancement in intrinsic coercivity on M-type strontium hexaferrite through the increase in magneto-crystalline anisotropy by co-doping of group-V and alkali elements10.1063/1.4850517 ↗
25. Uniaxial magnetic anisotropy of transition metal oxides: role of local lattice deformation10.1088/1361-6463/ab7324 ↗
26. Solid state calculations using WIEN2k10.1016/S0927-0256(03)00112-5 ↗
27. Electronic structure calculations of solids using the WIEN2k package for material sciences10.1016/S0010-4655(02)00206-0 ↗
28. Generalized gradient approximation made simple10.1103/PhysRevLett.77.3865 ↗
29. Magnetic and electronic properties of strontium hexaferrite SrFe12O19 from first-principles calculations10.1088/0953-8984/15/36/311 ↗
30. Half metallic magnets10.1063/1.1381101 ↗
31. Fong · 2013