Contents
Vibrational Properties
Elastic Properties
Optical and dielectric Properties
Crystal Structures
Spacegroup: Pnb21
Point group: C2v
Lattice constants:
Wyckoff positions:
[1]
Synthesis and growth
not reported yet
Electronic band structure
Band gap direct at Γ.
Band gap:
Effective masses:
conduction band minimum (in units of fraction of the free electron mass)
conduction band minimum (in units of fraction of the free electron mass)
valence band maximum splittings and effective masses[1]
Band structure figures can be found in [1].
Figures:
Figure 1:Band structure of CdSiN2. From data published in [2].
Figure 2: Band structure near valence band maximum [2].
Vibrational Properties
Modes at the zone center (in cm-1) from [2]
Infrared Spectra [2]
Raman spectra: are given for various scattering geometries, ki(eieo)ko in Ref [3] combined with those of CdGeN2, CdSnN2.
Elastic properties
Elastic stiffness coefficients (in GPa) [3].
Elastic compliance coefficients ( in Mbar-1) [4]
Derived average elastic constant G=shear elastic constants (in GPa) , B=bulk modulus
Y= Young's modulus R Reuss average over angles of the compliances, V Voigt average
average over angles of the stiffnesses, without subscript average of Reuss and Voigt
𝜈 = Poisson ratio, [4]
Piezoelectric constants ( in C/m2) [4]
Spontaneous polarization -0.019 C/m2 [4]
Optical and dielectric properties
high-frequency and static dielectric constants [2]
Index of refraction [3]
nx
2.410
ny
2.320
nz
2.391
Second-order non-linear susceptibility (in pm/V) [4]
using different pseudopotentials HGH Hartwigsen Goedecker, Hutter
FHI Fritz-Haber Institute
both from abinit website
+sc means including scissor's correction of band gap
Pockels coefficients (pm/V) [4]
References
[1].Sai Lyu and Walter R. L. Lambrecht Phys. Rev. Mater. 1, 024606 (2017)
[2] Sai Lyu and Walter R. L. Lambrecht, J. Appl. Phys. 123, 205701 (2018)
[3] Sai Lyu and Walter R. L. Lambrecht, J. Appl. Phys. 124, 055705 (2018)
[4] Sai Lyu and Walter R. L. Lambrecht, Phys. Rev. Mater. 2, 124602 (2018)