Impact of Zn2+-Zr4+ substitution on M-type Barium Strontium Hexaferrite’s structural, surface morphology, dielectric and magnetic properties

• DOI: 10.1016/j.rinp.2021.103892
• Publication Date: 2021-01-30T07:22:23Z
• Authors: Sachin Kumar Godara; Varinder Kaur; Kirti Chuchra; S.B. Narang; Gurpreet Singh; Mandeep singh; Aanchal chawla; Swati Verma; Gopala Ram Bhadu; Jayesh C. Chaudhari; P.D. Babu; Ashwani Kumar Sood
• Keywords: Rietveld Refinement; Barium; Lattice constant

We report the synthesis of Ba0.5Sr0.5ZnxZrxFe12-2xO19 (x = 0.00–1.00) samples using sol–gel auto combustion method. The Rietveld refinement XRD data indicates a) pure phase formation, b) increase in lattice parameters with composition and c) absence undesirable phases such as α–Fe2O3, BaCO3 SrCO3. FESEM TEM micrographs reveal an grain size 'x'. broadening Raman peaks without any peak shift all that Zn2+/Zr4+ions are incorporated into Ba0.5Sr0.5Fe12O19 altering local structure. Magnetic measurements maximum value saturation magnetization (Ms) is 67.37 emu/g x 0.4 sample. coercivity (Hc) monotonically decreases from 4.936 KOe to 1.029 increasing concentration non-magnetic dopants. dielectric constant values function frequency for samples. because their superior magnetic properties could be vital high density perpendicular recording, parallel recording EM shielding permanent magnet applications.