Abstract

Density functional theory has been employed to determine ground state properties and calculate the complex dielectric function of the $\text{FeF}_2$ compound. The complex expression of magnetic permeability has been estimated using the formula of the magnetic permeability tensor. To interpret the optical transitions, densities of states and projected densities of states have been determined. Suitable expressions for treating contributions of electric permittivity and magnetic permeability to optical properties have been derived and applied. The absorption coefficient in the visible range is a result of the transitions from the top of the valence band to $4s$ bands of $\text{Fe}^{2 +}$ cations in the conduction band. In the far-infrared region, $\text{FeF}_2$ is a perfect reflector. The estimated optical properties show good agreement with previous theoretical and experimental results in the literature.

© 2021 Optical Society of America

Two-dimensional MoS₂ 2H, 1T, and 1T^′ crystalline phases with incorporated adatoms: theoretical investigation of electronic and optical properties

Faisal Mehmood, Ruth Pachter, Tyson C. Back, John J. Boeckl, Robert T. Busch, and Peter R. Stevenson
Appl. Opt. 60(25) G232-G242 (2021)

Investigation on the nonreciprocal properties of one-dimensional cylindrical magnetized plasma photonic crystals

Qianyu Wang, Pengxiang Wang, Baofei Wan, and Haifeng Zhang
J. Opt. Soc. Am. A 38(6) 897-907 (2021)

Plane wave scattering by a three-dimensional chiral object immersed in a simple Lorentz-nonreciprocal medium with magnetoelectric gyrotropy

Hamad M. Alkhoori
J. Opt. Soc. Am. A 38(4) 547-555 (2021)

Z-scan investigation to evaluate the third-order nonlinear optical properties of cauliflower-like VS₂ structures

Marziyeh Parishani, Marzieh Nadafan, and Rasoul Malekfar
J. Opt. Soc. Am. B 38(5) 1586-1592 (2021)

Pressure effect on structures and optoelectronic attributes of mixed halide CsPb(I/Br)₃: a density functional theory study

Ahmed S. Jbara, Junaid Munir, Masood Yousaf, and M. A. Saeed
J. Opt. Soc. Am. A 38(7) 940-946 (2021)