hP4-Ge (Direct)

hP4–Ge (Direct)

../_images/structure277.jpg

Image of hP4–Ge (Direct), generated by Vesta

Lattice Vectors:

\[\begin{split}a_1 &= ~\hat{x}\\ a_2 &= -1/2~\hat{x} + \sqrt{3}/\sqrt{4}~\hat{y}\\ a_3 &= 1.6624365725~\hat{z}\\\end{split}\]

Space Group: 194

Point Group of Structure: \(6/mmm\)

Structure DOI: https://doi.org/10.17188/1324726

Photonics DOI: https://doi.org/10.1088/0953-8984/16/6/005

Source: Inorganic Crystallographic Database #636533

MPB Epsilon Input File: Download

Gap Atlas for \(\varepsilon = 16\)

../_images/gap_atlas-16273.png

Gap Atlas for \(\varepsilon\) = 16 across filling fraction \(\phi\) and frequency \(\omega\).

Gap Atlas for \(\varepsilon = 14\)

../_images/gap_atlas-14273.png

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

Gap Atlas for \(\varepsilon = 12\)

../_images/gap_atlas-12231.png

Gap Atlas for \(\varepsilon\) = 12 across filling fraction \(\phi\) and frequency \(\omega\).

Gap Atlas for \(\varepsilon = 10\)

../_images/gap_atlas-10175.png

Gap Atlas for \(\varepsilon\) = 10 across filling fraction \(\phi\) and frequency \(\omega\).

Gap Atlas for \(\varepsilon = 8\)

../_images/gap_atlas-8114.png

Gap Atlas for \(\varepsilon\) = 8 across filling fraction \(\phi\) and frequency \(\omega\).

Gap between Bands 4-5

Below is the band structure and isosurface of hP4–Ge (Direct) at dielectric contrast \(\varepsilon = 16\), radius \(r = 0.34\) and filling fraction \(\phi = 0.161\).

../_images/band_diagram_b=443.jpg

Band Structure across first Brillouin Zone.

../_images/hP4-Ge@gap_4-5.png

View along \(a_1\).

Gap between Bands 16-17

Below is the band structure and isosurface of hP4–Ge (Direct) at dielectric contrast \(\varepsilon = 16\), radius \(r = 0.27\) and filling fraction \(\phi = 0.057\).

../_images/band_diagram_b=1648.jpg

Band Structure across first Brillouin Zone.

../_images/hP4-Ge@gap_16-17.png

View along \(a_1\).