Dynamical matrix file phonons of AlAs at Gamma 2 2 2 10.5750000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 1 'Al ' 24590.765652728711 2 'As ' 68285.402620549852 1 1 0.0000000000 0.0000000000 0.0000000000 2 2 0.2500000000 0.2500000000 0.2500000000 Dynamical Matrix in cartesian axes q = ( 0.000000000 0.000000000 0.000000000 ) 1 1 0.18713984 0.00000000 -0.00000000 0.00000000 0.00000000 0.00000000 -0.00000000 0.00000000 0.18713984 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.18713984 0.00000000 1 2 -0.18708414 0.00000000 0.00000000 0.00000000 -0.00000000 0.00000000 0.00000000 0.00000000 -0.18708414 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 -0.18708414 0.00000000 2 1 -0.18708414 0.00000000 0.00000000 0.00000000 -0.00000000 0.00000000 0.00000000 0.00000000 -0.18708414 0.00000000 0.00000000 0.00000000 -0.00000000 0.00000000 0.00000000 0.00000000 -0.18708414 0.00000000 2 2 0.18683555 0.00000000 -0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.18683555 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.18683555 0.00000000 Dielectric Tensor: 8.811591229130 0.000000000000 0.000000000000 0.000000000000 8.811591229130 0.000000000000 0.000000000000 0.000000000000 8.811591229130 Effective Charges E-U: Z_{alpha}{s,beta} atom # 1 2.141758532033 -0.000000000000 0.000000000000 -0.000000000000 2.141758532033 -0.000000000000 0.000000000000 -0.000000000000 2.141758532033 atom # 2 -2.143322179196 -0.000000000000 -0.000000000000 0.000000000000 -2.143322179196 0.000000000000 -0.000000000000 -0.000000000000 -2.143322179196 Raman tensor (A^2) atom # 1 pol. 1 -0.145527778197E-14 -0.183624055212E-14 0.110479203343E-14 -0.183624055212E-14 -0.218672630066E-14 -0.517164711954E+01 0.761925540300E-17 -0.517164711954E+01 0.739067774091E-15 atom # 1 pol. 2 -0.739067774091E-15 0.373343514747E-15 -0.517164711954E+01 0.761925540300E-17 0.108955352263E-14 -0.358105003941E-15 -0.517164711954E+01 -0.723829263285E-15 -0.739067774091E-15 atom # 1 pol. 3 0.110479203343E-14 -0.517164711954E+01 0.256768907081E-14 -0.517164711954E+01 -0.723829263285E-15 -0.761925540300E-17 0.110479203343E-14 -0.373343514747E-15 0.373343514747E-15 atom # 2 pol. 1 -0.115812682126E-14 -0.670494475464E-15 0.670494475464E-15 -0.103621873481E-14 -0.609540432240E-16 0.522713595387E+01 -0.792402561912E-15 0.522713595387E+01 0.140194299415E-14 atom # 2 pol. 2 0.426678302568E-15 -0.609540432240E-16 0.522713595387E+01 -0.115812682126E-14 -0.670494475464E-15 0.670494475464E-15 0.522713595387E+01 -0.426678302568E-15 0.426678302568E-15 atom # 2 pol. 3 -0.609540432240E-15 0.522713595387E+01 -0.134098895093E-14 0.522713595387E+01 -0.134098895093E-14 0.134098895093E-14 0.121908086448E-15 0.609540432240E-15 -0.609540432240E-15 Diagonalizing the dynamical matrix q = ( 0.000000000 0.000000000 0.000000000 ) ************************************************************************** freq ( 1) = -0.149954 [THz] = -5.001935 [cm-1] ( 0.554352 0.000000 0.291204 0.000000 -0.328038 0.000000 ) ( 0.554668 0.000000 0.291370 0.000000 -0.328226 0.000000 ) freq ( 2) = -0.149954 [THz] = -5.001935 [cm-1] ( -0.225027 0.000000 0.642586 0.000000 0.190159 0.000000 ) ( -0.225156 0.000000 0.642953 0.000000 0.190267 0.000000 ) freq ( 3) = -0.149954 [THz] = -5.001935 [cm-1] ( 0.376526 0.000000 -0.044698 0.000000 0.596611 0.000000 ) ( 0.376741 0.000000 -0.044724 0.000000 0.596952 0.000000 ) freq ( 4) = 10.583040 [THz] = 353.012218 [cm-1] ( 0.908235 0.000000 0.245821 0.000000 0.000000 0.000000 ) ( -0.326885 0.000000 -0.088474 0.000000 0.000000 0.000000 ) freq ( 5) = 10.583040 [THz] = 353.012218 [cm-1] ( -0.231025 0.000000 0.853569 0.000000 0.321505 0.000000 ) ( 0.083149 0.000000 -0.307210 0.000000 -0.115714 0.000000 ) freq ( 6) = 10.583040 [THz] = 353.012218 [cm-1] ( 0.083996 0.000000 -0.310339 0.000000 0.884281 0.000000 ) ( -0.030231 0.000000 0.111695 0.000000 -0.318263 0.000000 ) **************************************************************************