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qcl:material_database [2017/05/19 14:08]
stefan.birner
qcl:material_database [2017/06/08 18:05]
stefan.birner
Line 5: Line 5:
 The default material parameters are taken from I. Vurgaftman, J. R. Meyer, L. R. Ram-Mohan, J. Appl. Phys. 89, 5815 (2001). The default material parameters are taken from I. Vurgaftman, J. R. Meyer, L. R. Ram-Mohan, J. Appl. Phys. 89, 5815 (2001).
  
-Some parameters can be overwritten in the input file, see section on ''<​Material_Parameters>''​ in the [[qcl:​input_file|input file documentation]].//+Some parameters can be overwritten in the input file, see section on ''<​Material_Parameters>''​ in the [[qcl:​input_file|input file documentation]].
  
  
 S = 1+2F <!-- parameter that accounts for remote-band effects in 8-band k.p theory --> S = 1+2F <!-- parameter that accounts for remote-band effects in 8-band k.p theory -->
 +
 +<​DeformationPotential Unit="​eV">​-7.2</​DeformationPotential>​ corresponds to "​a_c"​ of Vurgaftman (i.e. for the conduction band only) in the isotropic approximation. It is used to calculate the shift of the conduction abnd edge due to strain.
 +It is also used to calculate scattering by acoustic phonons (which is a very small effect, almost negligible in typical QCLs).
qcl/material_database.txt ยท Last modified: 2021/01/04 15:04 by thomas.grange