Effect of γ- rays irradiation on structural, electrical and magnetic properties of Dy3+ substituted nanocrystalline Ni-Zn ferrites

Structural and Optical Coefficients Investigation of γ-Al2O3 Nanoparticles using Kramers-Kronig Relations and Z–scan Technique

“…In a similar situation, the intermediate point of the negative to positive data of real dielectric function is LO frequency mode [51]. In some literature, the TO and LO modes are the maximum position of ε 2 and ImðÀ 1 = ε Þ plots, respectively [39]. The LO and TO modes are confirmed by two methods since the LO mode can be observed in Figures 10 and 11.…”

“…The XRD patterns are shown in Figure 2 [9]. The crystallite size has been estimated at about 8 nm by Debye Scherrer's formula [39]:…”

“…In the above equation, K represents the Scherrer constant (0.9), whereas λ is the X-ray wavelength. Moreover, β shows the full width at half-maximum of the reflections, and θ stands for the Bragg's angle in radian [39]. The sample surface nature and morphology were assessed by the field emission scanning electron microscopy (FESEM) technique [21].…”