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Investigating structural, magnetic and multiferroic properties of gadolinium substituted strontium hexaferrite (SrFe12-xGdxO19)
| Content Provider | Scilit |
|---|---|
| Author | Kumar, Singh S. Singh, Rakesh K. Manash, Aniket Kumar, Gaurav Shankar, Uday Satyapal, Harendra K. |
| Copyright Year | 2021 |
| Description | Journal: Iop Conference Series: Materials Science and Engineering An economical and citrate precursor based sol-gel technique is employed for pure phase synthesis of $Gd^{3+}$ substituted M-type strontium hexaferrite $(SrFe_{12-x}Gd_{x}O_{19}$) for x = (0.25 - 1.00). The XRD patterns reflected all prominent planes related to hexagonal symmetry $(P6_{3}$/mmc space group). The crystallite size and induced strains is determined using Williamson-Hall plot. Lattice constants (a) and (c) shows minor increments with $Gd^{3+}$ concentration. Particle distributions in SEM micrograph agree with W-H plot analysis. FTIR analysis is in consistent with X-ray intensity results. The 'Law of Approach' to saturation is applied to estimate parameters such as, magnetization $(M_{s}$) of order 40.91 to 57.7 emu/g and retentivity (Mr) ranging from 26.3 to 32.5 emu/g. A remarkable increase in coercivity $(H_{C}$) is observed with increasing $Gd^{3+}$ composition, with a value of 2500 to 6310 Gauss. Moreover, incorporation of $Gd^{3+}$ in $SrFe_{12-x}Gd_{x}O_{19}$ lattice hinders electrical leakage profitably to yield remanent $(P_{r}$) and coercive polarization (Pc) of order 0.19 $μC/cm^{2}$ and 17 kV/cm respectively. Thus sol-gel method proves to be useful in synthesizing nanomaterials of enhanced physical properties along with it being cost effective. Therefore, we are reporting tuning of magnetic and multiferroic properties of $SrFe_{12}O_{19}$ due to crystal strain mediated by $Gd^{3+}$ doping at $Fe^{3+}$ site. |
| Related Links | https://iopscience.iop.org/article/10.1088/1757-899X/1149/1/012013/pdf |
| ISSN | 17578981 |
| e-ISSN | 1757899X |
| DOI | 10.1088/1757-899x/1149/1/012013 |
| Journal | Iop Conference Series: Materials Science and Engineering |
| Issue Number | 1 |
| Volume Number | 1149 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2021-05-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Iop Conference Series: Materials Science and Engineering Condensed Matter Physics |
| Content Type | Text |
| Resource Type | Article |
