Magnetic and spin-phonon coupling studies of magneto-electric SrFe8Co2Ti2O19 M−type hexaferrite
Source abstract
Abstract
Structural, magnetic, in-field 57Fe Mössbauer and Raman studies of SrFe 8Co 2Ti 2O 19 polycrystalline magneto-electric hexaferrite are reported in this article. From bulk magnetization measurements, a transition is observed at 330 K, which is ascribed to a conical like magnetic transition. The population of spin-up and spin-down sites at tetrahedral and octahedral sites are calculated from in-field 57Fe Mössbauer spectroscopic studies. Furthermore, the observed cation distribution suggests that the Co 2+ ions occupy the spin-down 4f 2 octahedral site, which is reported to stabilize the conical magnetic structure and is expected to play an important role in the magneto-electric properties. Temperature-dependent Raman spectroscopy studies confirmed the spin-phonon coupling in the prepared sample.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Multiferroics and related materials · Magnetic Properties and Synthesis of Ferrites · Magneto-Optical Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (32)
Show source-provided references
1. Hexagonal ferrites: a review of the synthesis, properties and applications of hexaferrite ceramics10.1016/j.pmatsci.2012.04.001 ↗
2. Magnetic control of ferroelectric polarization10.1038/nature02018 ↗
3. Electric polarization rotation in a hexaferrite with long-wavelength magnetic structures10.1103/PhysRevLett.94.137201 ↗
4. Modification of Helix in (Ba1-xSrx)2Zn2Fe12O22 Due to applied magnetic field10.1143/JPSJ.54.3895 ↗
5. Magnetic and magnetoelectric properties of Ba 2 - X Sr x Ni 2 Fe 12 O 22 single crystals with Y-type hexaferrite structure10.1063/1.3622332 ↗
6. Low-field magnetoelectric effect at room temperature10.1038/nmat2826 ↗
7. Multiferroic M -Type Hexaferrites with a room-temperature conical state and magnetically controllable spin helicity10.1103/PhysRevLett.105.257201 ↗
8. 57Fe Mössbauer and Co K β x-ray emission spectroscopic investigations of La-Co and la substituted strontium hexaferrite10.1063/1.5011244 ↗
9. Magnetic anisotropies of La-Co substituted M-type Sr hexaferrites studied by 57Fe Mössbauer spectroscopy with external magnetic fields10.1063/5.0019954 ↗
10. The magnetic and magneto-optical properties of Co, Cr, Mn, and Ni substituted barium ferrite films10.1063/1.356831 ↗
11. Beevers · Enhanced magnetoelectric effect in M-type hexaferrites by Co substitution into trigonal bi-pyramidal sites · 2018 · 112 · 082401
12. Single-Crystal Ferroxdure, BaFe 12–2 x 3+ Ir x 4+ Zn x 2+ O 19, with Strong Planar Anisotropy10.1063/1.1729464 ↗
13. Electric control of magnetism at room temperature10.1038/srep00223 ↗
14. First observation of magnetoelectric effect in M-type hexaferrite thin films10.1063/1.4795721 ↗
15. Magnetic-ion-induced displacive electric polarization in FeO5 bipyramidal units of (Ba, Sr)Fe12O19 hexaferrites10.1103/PhysRevB.90.180404 ↗
16. An investigation of the magnetic anisotropy change in BaFe12−2xTixCoxO19 single crystals10.1016/S0304-8853(00)01355-X ↗
17. Exchange integrals in magnetoelectric hexagonal ferrite (SrCo 2Ti2Fe8O19): a density functional study10.1063/1.4865886 ↗
18. Cationic distribution, magnetization and magnetic anisotropy of Co2+ doped M-type barium ferrite10.1016/0304-8853(90)90588-H ↗
19. NMR characterization of Co sites in La+Co-doped Sr hexaferrites with enhanced magnetic anisotropy10.1103/PhysRevB.65.184402 ↗
20. Preparation and physical properties of M-type hexaferrite SrCo2Ti2Fe8O1910.1080/00150193.2016.1170565 ↗
21. The magnetic properties of single crystal SrCo2Ti2Fe8O19 compound10.1016/j.phpro.2015.12.032 ↗
22. Preparation of substituted barium ferrite BaFe12-x(Ti0.5Co0.5)xO19 by citrate precursor method and compositional dependence of their magnetic properties10.1016/j.jmmm.2006.12.020 ↗
23. Ab initio study on magnetic anisotropy change of SrCoxTi xFe12-2xO1910.1063/1.4795821 ↗
24. Exchange interactions in barium hexaferrite10.1103/PhysRevB.71.184433 ↗
25. Phonon anomalies and phonon-spin coupling in oriented PbFe 0.5Nb0.5O3 thin films10.1103/PhysRevB.83.014302 ↗
26. Raman Spectra and Vibrational Analysis of BaFe12O19Hexagonal Ferrite10.1006/jssc.1997.7737 ↗
27. Disorder of Fe (2) O 5 bipyramids and spin-phonon coupling in SrFe 12 O 19 nanoparticles10.1016/j.ceramint.2019.03.214 ↗
28. Raman study of BaFe12O19 thin films10.1063/1.122124 ↗
29. Spin-phonon coupling in multiferroic Ba1.6Sr 1.4Co2Fe24O4110.1016/j.jmmm.2014.03.079 ↗
30. Raman studies of spin-phonon coupling in hexagonal BaFe12O 19
31. Magnetic, ferroelectric, and spin phonon coupling studies of Sr3Co2Fe24O41 multiferroic Z-type hexaferrite10.1063/1.4960444 ↗
32. Raman study of substituted barium ferrite single crystals, BaFe12−2xMexCoxO19 (Me=Ir, Ti)10.1002/(SICI)1097-4555(199902)30:2<115::AID-JRS354>3.0.CO;2-D ↗