RETRACTED ARTICLE: Synthesis, structural, and ionic conductivity characterizations of new spinel material: LiCoNbO4

Crystal structure and optical characterization of a new hybrid compound, C6H9N2FeCl4, with large dielectric constants for field-effect transistors

“…The real and imaginary components of are provided by: 72 where ω is the angular frequency, τ is the relaxation time, and α is a material-dependent constant related to the width of the distribution of relaxation times ( m = 1 − α ). 73 Furthermore, in the low and high frequency limits, respectively, ε s and ε ∞ are the dielectric constants.…”

Research on the physical properties of LiMn0.5Fe2O4 spinel ferrites by the combination of optical, magnetic, and dielectric behaviors

“…LiMn 0.5 -Fe 2 O 4 shows a direct band gap like other compounds belonging to the spinel ferrite family. 41,43,44 The inset in Fig. 5 exhibits the variation of (F(R)hn) 2 as a function of hn, the forbidden band value (E g ) is obtained by the extrapolation line of the curve to the energy axis (at the origin of the y-axis).…”