Characterizations analysis of magneto-structural transitions in Ce-Co doped SrM based nano Sr1−xCexFe12−xCoxO19 hexaferrite crystallites prepared by ceramic route

•Ce+3-Co+2 doped M-type sintered nano Sr1−xCexFe12−xCoxO19 (0 ≤ x ≤ 0.25/x = 0.05) hexaferrite crystallites were successfully synthesized through conventional ceramic route.•XRD, XPS, SEM, EDS, TEM, HRTEM, and SAED carried out the structural characterizations.•VSM analysis reflected the Magnetic properties.•The structural study confirmed the phase singularity, polycrystallinity, hexagonality and moreover agglomeration of nano-sized grains into the micro-sized hexagonal platelets.•The magnetic study confirmed the ferromagnetic nature and magnetically hardness of the samples for permanent magnetic industrial applications as a smooth microwave signals provider in recording media. Herein, to analyze as a smooth microwave signal contributor in recording media, we have successfully synthesized Ce-Co co-doped SrM based nano hexaferrite crystallites through conventional ceramic route. The magneto-structural properties were studied analytically by employing different characterizations. Consequently, Rietveld refinement of X-ray diffraction (XRD) certified the phase singularity, with space group P63/mmc hexagonal. Field Emission Scanning Electron Microscope (FESEM) revealed the aggregation of grains into regular hexagonal platelets of sizes ~1 to 2 µm. Transmission electron microscope (TEM) estimated the grain size and high crystallinity. X-ray photoelectron spectroscopy (XPS) corroborated the host and dopant elements in diverse chemical states, affecting the magneto-structural parameters. Vibrating sample magnetometer (VSM) validated the ferromagnetic nature of samples at 300 K by measuring their saturation magnetization (MS). Accordingly; Stoner Wolhfarth (S-W) model confirmed the MS values, the domain singularity with squareness ratio (SQR) of ~0.51 and the high uniaxial magneto-crystalline anisotropy (MCA) of the prepared hexaferrites. Different magnetic parameters were analyzed using coupled intrinsic and normal demagnetization curves, results in Br > 1 kG & Hc > 1 kOe, validating our samples usage in permanent magnetic industry.