Effect of spin orbit coupling on opto-electronic and magnetic properties of full Heusler alloy, Ru2CrAl for spintronic and optical devices: Theoretical investigations using DFT

Investigating the potential of lead‐free double perovskite Cs 2 AgBiBr 6 material for solar cell applications: A theoretical study

“…To study the various optical parameters, the complex dielectric function ɛ(ω) as a function of incident photon energy has been estimated. Dielectric constant, ɛ(ω) can be expressed in terms of real (ɛ 1 (ω)) and imaginary (ɛ 2 (ω)) 27‐30 : Real and imaginary part of the dielectric function, ɛ ( ω ) has been shown in Figure 6A. Dielectric spectra have been plotted within the incident energy range of 1 to 14 eV, i.e., in IR, visible and UV part of the electromagnetic (em) radiation.…”

“…2500 k points were used in the present calculation having the energy and charge convergence limit of the order of 10 −4 . Other details about the theoretical approach adopted for the estimation of optical parameters of the optimized double perovskite Cs 2 AgBiBr 6 compound are described in our previous reports 27‐30 …”

“…Other details about the theoretical approach adopted for the estimation of optical parameters of the optimized double perovskite Cs 2 AgBiBr 6 compound are described in our previous reports. [27][28][29][30]…”

“…To study the various optical parameters, the complex dielectric function ϵ(ω) as a function of incident photon energy has been estimated. Dielectric constant, ϵ(ω) can be expressed in terms of real (ϵ 1 (ω)) and imaginary (ϵ 2 (ω)) [27][28][29][30] :…”