Raman spectra of sol-gel auto-combustion synthesized Mg-Ag-Mn and Ba-Nd-Cd-In ferrite based nanomaterials

In this present work, we have done the comparison of raman spectra of hard ferrite i.e. Ba0.7Nd0.3Cd0.5xIn0.5xFe12-xO19 (x = 0.0, 0.2, 0.3) and soft ferrite i.e. Mg(1-)xMn(x)Ag(y)Fe(2-y)O(4) (x = 0.1, 0.2, 0.3, 0.4, 0.5, y = 0.0, 0.1, 0.2, 0.3, 0.4) which defines the novality and achievement of this work. These ferrite based nanomaterials were synthesized with the aid of sol-gel auto-combustion method in order to analyze Raman spectra carried with 514.5 nm laser of argon ion (50 mW) by using Renishaw inVia Reflex micro-Raman spectrometer. The Raman spectra of synthesized Mg(1-)xMn(x)Ag(y)Fe(2-y)O(4) (x = 0.1, 0.2, 0.3, 0.4, 0.5, y = 0.0, 0.1, 0.2, 0.3, 0.4) and Ba(0.7)Nd(0.)3Cd(0.5)xIn(0.5x)Fe(12-x)O(19) (x = 0.0, 0.2, 0.3) ferrites confirmed the formation of five active Raman vibrational modes (A(1g), + E-g + 3T(2g)). Out of this, Raman spectral analysis of Mg(1-)xMn(x)Ag(y)Fe(2-y)O(4) (x = 0.1, 0.2, 0.3, 0.4, 0.5, y = 0.0, 0.1, 0.2, 0.3, 0.4) nanomaterials confined that E, mode is found in the range of 194.74-212.77 cm(-1), T25 vibrational mode is found to be in the range of 326.17-339.58 cm(-1), 482.27-587 cm(-1) and 608.84-614.02 cm(-1) whereas A(1g), configuration mode is found to be in the range of 685.47-701.52 cm(-1). In addition to this, Raman spectral analysis of Ba(0.7)Nd(0.3)Cd(0.5x)In(0.5)xFe(12-x)O(19) (x = 0.0, 0.2, 0.3) nanohexaferrites consists of five Raman active vibrational modes in the range as nu 1 = 329.02-334.70 cm(-1), nu(2) = 410.33-410.90 cm(-1), nu(3) = 522.06-524.65 cm(-1), nu(4) = 612.52-616.66 cm(-1) and nu 5 = 679.97-685.16 cm(-1). The Raman spectra of both the compositions continuously indicates the symmetric and anti-symmetric behaviour of the band position of spinel and hexagonal magnetic nanomaterials.