cF4-Cu (Direct)

cF4–Cu (Direct)

Image of cF4–Cu (Direct), generated by Vesta

Lattice Vectors:

\[\begin{split}a_1 &= 1/\sqrt{2}~\hat{y} + 1/\sqrt{2}~\hat{z}\\ a_2 &= 1/\sqrt{2}~\hat{x} + 1/\sqrt{2}~\hat{z}\\ a_3 &= 1/\sqrt{2}~\hat{x} + 1/\sqrt{2}~\hat{y}\\\end{split}\]

Space Group: 225

Point Group of Structure: \(m\bar{3}m\)

Structure DOI: https://doi.org/10.1063/1.1728392

Photonics DOI: https://doi.org/10.1103/PhysRevLett.63.1950

Source: Inorganic Crystallographic Database #43493

MPB Epsilon Input File: Download

Gap Atlas for \(\varepsilon = 14\)

Gap Atlas for \(\varepsilon\) = 14 across filling fraction \(\phi\) and frequency \(\omega\).

Gap between Bands 2-3

Below is the band structure and isosurface of cF4–Cu (Direct) at dielectric contrast \(\varepsilon = 16\), radius \(r = 0.27\) and filling fraction \(\phi = 0.117\).

Band Structure across first Brillouin Zone.

View along \(a_1\).

Gap between Bands 3-4

Below is the band structure and isosurface of cF4–Cu (Direct) at dielectric contrast \(\varepsilon = 16\), radius \(r = 0.32\) and filling fraction \(\phi = 0.194\).

Band Structure across first Brillouin Zone.

View along \(a_1\).

Gap between Bands 5-6

Below is the band structure and isosurface of cF4–Cu (Direct) at dielectric contrast \(\varepsilon = 16\), radius \(r = 0.25\) and filling fraction \(\phi = 0.093\).

Band Structure across first Brillouin Zone.

View along \(a_1\).

Gap between Bands 18-19

Below is the band structure and isosurface of cF4–Cu (Direct) at dielectric contrast \(\varepsilon = 16\), radius \(r = 0.28\) and filling fraction \(\phi = 0.13\).

Band Structure across first Brillouin Zone.

View along \(a_1\).