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Dear Blaha sir and users,<br>Am confused a lot in calculating the
optical property of tetragonal structure, sir i started it by matching
the results (same calculations) as done in Phys.Status Solidi B 248, No.
3 (2011) <br> i need to clarify some points<br>(1) using the w2web for optical case is right..i am just using a non-mag., non so coupling case<br>or i have to follow the user guide steps<br>(2)
i had attached the case.epsilon file. plz have a look as for the 0eV
the Im epsilon has a non zero value..(its bandgap 1.29) as below<br># Energy [eV] Re_eps_xx Im_eps_xx Re_eps_zz Im_eps_zz<br> 0.013610 0.725736E+01 0.738507E-01 0.736507E+01 0.775948E-01<br> 0.040820 0.725794E+01 0.749616E-01 0.736572E+01 0.788273E-01<br> 0.068030 0.725912E+01 0.761013E-01 0.736702E+01 0.800945E-01<br> 0.095240 0.726088E+01 0.772711E-01 0.736898E+01 0.813978E-01<br> 0.122450 0.726324E+01 0.784720E-01 0.737158E+01 0.827388E-01<br> 0.149660 0.726618E+01 0.797055E-01 0.737484E+01 0.841192E-01<br> 0.176870 0.726972E+01 0.809729E-01 0.737877E+01 0.855409E-01<br> 0.204090 0.727387E+01 0.822760E-01 0.738335E+01 0.870063E-01<br> 0.231300 0.727861E+01 0.836155E-01 0.738861E+01 0.885165E-01<br> 0.258510 0.728396E+01 0.849935E-01 0.739455E+01 0.900742E-01<br> 0.285720 0.728992E+01 0.864117E-01 0.740116E+01 0.916819E-01<br> 0.312930 0.729650E+01 0.878720E-01 0.740847E+01 0.933421E-01<br> 0.340140 0.730371E+01 0.893763E-01 0.741648E+01 0.950575E-01<br> 0.367350 0.731155E+01 0.909267E-01 0.742519E+01 0.968312E-01<br> 0.394570 0.732003E+01 0.925262E-01 0.743463E+01 0.986671E-01<br> 0.421780 0.732916E+01 0.941759E-01 0.744479E+01 0.100567E+00<br> 0.448990 0.733894E+01 0.958791E-01 0.745570E+01 0.102536E+00<br> 0.476200 0.734940E+01 0.976386E-01 0.746737E+01 0.104578E+00<br> 0.503410 0.736053E+01 0.994575E-01 0.747981E+01 0.106698E+00<br> 0.530620 0.737236E+01 0.101339E+00 0.749304E+01 0.108900E+00<br> 0.557830 0.738489E+01 0.103287E+00 0.750708E+01 0.111190E+00<br> 0.585040 0.739814E+01 0.105305E+00 0.752194E+01 0.113574E+00<br> 0.612260 0.741213E+01 0.107398E+00 0.753766E+01 0.116059E+00<br> 0.639470 0.742687E+01 0.109569E+00 0.755425E+01 0.118651E+00<br> 0.666680 0.744238E+01 0.111825E+00 0.757173E+01 0.121359E+00<br> 0.693890 0.745868E+01 0.114170E+00 0.759014E+01 0.124192E+00<br> 0.721100 0.747579E+01 0.116612E+00 0.760950E+01 0.127161E+00<br> 0.748310 0.749374E+01 0.119157E+00 0.762985E+01 0.130278E+00<br> 0.775520 0.751254E+01 0.121813E+00 0.765123E+01 0.133554E+00<br> 0.802740 0.753224E+01 0.124590E+00 0.767368E+01 0.137008E+00<br> 0.829950 0.755284E+01 0.127496E+00 0.769723E+01 0.140654E+00<br> 0.857160 0.757439E+01 0.130543E+00 0.772193E+01 0.144513E+00<br> 0.884370 0.759693E+01 0.133744E+00 0.774784E+01 0.148609E+00<br> 0.911580 0.762048E+01 0.137114E+00 0.777502E+01 0.152971E+00<br> 0.938790 0.764510E+01 0.140672E+00 0.780354E+01 0.157632E+00<br> 0.966000 0.767082E+01 0.144437E+00 0.783346E+01 0.162633E+00<br> 0.993220 0.769772E+01 0.148436E+00 0.786488E+01 0.168024E+00<br> 1.020430 0.772582E+01 0.152696E+00 0.789787E+01 0.173864E+00<br> 1.047640 0.775521E+01 0.157255E+00 0.793254E+01 0.180231E+00<br> 1.074850 0.778594E+01 0.162158E+00 0.796901E+01 0.187226E+00<br> 1.102060 0.781810E+01 0.167464E+00 0.800741E+01 0.194975E+00<br> 1.129270 0.785177E+01 0.173246E+00 0.804788E+01 0.203651E+00<br> 1.156480 0.788705E+01 0.179603E+00 0.809055E+01 0.213483E+00<br> 1.183700 0.792404E+01 0.186666E+00 0.813558E+01 0.224786E+00<br> 1.210910 0.796281E+01 0.194603E+00 0.818300E+01 0.237960E+00<br> 1.238120 0.800343E+01 0.203644E+00 0.823278E+01 0.253516E+00<br> 1.265330 0.804589E+01 0.214065E+00 0.828469E+01 0.271996E+00<br> 1.292540 0.809011E+01 0.226157E+00 0.833826E+01 0.293870E+00<br> 1.319750 0.813587E+01 0.240176E+00 0.839290E+01 0.319419E+00<br> 1.346960 0.818291E+01 0.256291E+00 0.844795E+01 0.348708E+00<br> 1.374180 0.823096E+01 0.274579E+00 0.850287E+01 0.381627E+00<br> 1.401390 0.827971E+01 0.295016E+00 0.855711E+01 0.417907E+00<br> 1.428600 0.832898E+01 0.317542E+00 0.861032E+01 0.457239E+00<br> 1.455810 0.837857E+01 0.342057E+00 0.866223E+01 0.499269E+00<br> 1.483020 0.842835E+01 0.368440E+00 0.871266E+01 0.543630E+00<br> 1.510230 0.847822E+01 0.396564E+00 0.876151E+01 0.589963E+00<br> 1.537440 0.852812E+01 0.426300E+00 0.880872E+01 0.637925E+00<br> 1.564660 0.857803E+01 0.457535E+00 0.885435E+01 0.687213E+00<br> 1.591870 0.862790E+01 0.490125E+00 0.889840E+01 0.737494E+00<br> 1.619080 0.867776E+01 0.523971E+00 0.894099E+01 0.788515E+00<br> 1.646290 0.872764E+01 0.558969E+00 0.898224E+01 0.840030E+00<br> 1.673500 0.877758E+01 0.595027E+00 0.902232E+01 0.891823E+00<br> 1.700710 0.882765E+01 0.632061E+00 0.906138E+01 0.943699E+00<br> 1.727920 0.887791E+01 0.669996E+00 0.909963E+01 0.995491E+00<br> 1.755130 0.892845E+01 0.708769E+00 0.913727E+01 0.104706E+01<br> 1.782350 0.897938E+01 0.748342E+00 0.917455E+01 0.109829E+01<br> 1.809560 0.903077E+01 0.788642E+00 0.921167E+01 0.114907E+01<br> 1.836770 0.908276E+01 0.829648E+00 0.924889E+01 0.119932E+01<br> 1.863980 0.913547E+01 0.871337E+00 0.928649E+01 0.124899E+01<br> 1.891190 0.918905E+01 0.913696E+00 0.932475E+01 0.129805E+01<br> 1.918400 0.924365E+01 0.956722E+00 0.936397E+01 0.134648E+01<br> 1.945610 0.929944E+01 0.100043E+01 0.940445E+01 0.139430E+01<br> 1.972830 0.935663E+01 0.104485E+01 0.944656E+01 0.144155E+01<br> 2.000040 0.941536E+01 0.109000E+01 0.949062E+01 0.148826E+01<br> 2.027250 0.947588E+01 0.113593E+01 0.953702E+01 0.153453E+01<br> 2.054460 0.953844E+01 0.118274E+01 0.958618E+01 0.158048E+01<br> 2.081670 0.960329E+01 0.123050E+01 0.963855E+01 0.162628E+01<br> 2.108880 0.967074E+01 0.127934E+01 0.969462E+01 0.167211E+01<br> 2.136090 0.974112E+01 0.132942E+01 0.975493E+01 0.171823E+01<br> 2.163310 0.981483E+01 0.138095E+01 0.982010E+01 0.176500E+01<br> 2.190520 0.989222E+01 0.143412E+01 0.989075E+01 0.181277E+01<br> 2.217730 0.997380E+01 0.148928E+01 0.996766E+01 0.186209E+01<br> 2.244940 0.100601E+02 0.154679E+01 0.100517E+02 0.191361E+01<br> 2.272150 0.101518E+02 0.160718E+01 0.101437E+02 0.196820E+01<br> 2.299360 0.102495E+02 0.167108E+01 0.102449E+02 0.202697E+01<br> 2.326570 0.103540E+02 0.173935E+01 0.103565E+02 0.209144E+01<br> 2.353790 0.104663E+02 0.181315E+01 0.104799E+02 0.216365E+01<br> 2.381000 0.105874E+02 0.189398E+01 0.106164E+02 0.224636E+01<br> 2.408210 0.107182E+02 0.198399E+01 0.107674E+02 0.234348E+01<br> 2.435420 0.108598E+02 0.208616E+01 0.109340E+02 0.246053E+01<br> 2.462630 0.110127E+02 0.220463E+01 0.111159E+02 0.260530E+01<br> 2.489840 0.111764E+02 0.234517E+01 0.113097E+02 0.278839E+01<br> 2.517050 0.113477E+02 0.251518E+01 0.115059E+02 0.302266E+01<br> 2.544270 0.115188E+02 0.272255E+01 0.116840E+02 0.331905E+01<br> 2.571480 0.116757E+02 0.297143E+01 0.118119E+02 0.367504E+01<br> 2.598690 0.118013E+02 0.325695E+01 0.118596E+02 0.406383E+01<br> 2.625900 0.118839E+02 0.356406E+01 0.118214E+02 0.444145E+01<br> 2.653110 0.119227E+02 0.387397E+01 0.117201E+02 0.477139E+01<br> 2.680320 0.119282E+02 0.417238E+01 0.115929E+02 0.503955E+01<br> 2.707530 0.119161E+02 0.445673E+01 0.114741E+02 0.525559E+01<br> 2.734750 0.118954E+02 0.473710E+01 0.113818E+02 0.544505E+01<br> 2.761960 0.118608E+02 0.502379E+01 0.113139E+02 0.563270E+01<br> 2.789170 0.118000E+02 0.531514E+01 0.112577E+02 0.583161E+01<br> 2.816380 0.117083E+02 0.559900E+01 0.112014E+02 0.604415E+01<br> 2.843590 0.115915E+02 0.586413E+01 0.111375E+02 0.626788E+01<br> 2.870800 0.114598E+02 0.610679E+01 0.110621E+02 0.649958E+01<br> 2.898010 0.113211E+02 0.632908E+01 0.109732E+02 0.673656E+01<br> 2.925220 0.111798E+02 0.653502E+01 0.108699E+02 0.697674E+01<br> 2.952440 0.110375E+02 0.672836E+01 0.107511E+02 0.721853E+01<br> 2.979650 0.108947E+02 0.691172E+01 0.106163E+02 0.746030E+01<br> 3.006860 0.107511E+02 0.708711E+01 0.104649E+02 0.770081E+01<br> 3.034070 0.106065E+02 0.725589E+01 0.102961E+02 0.793880E+01<br> 3.061280 0.104606E+02 0.741912E+01 0.101095E+02 0.817307E+01<br> 3.088490 0.103130E+02 0.757775E+01 0.990403E+01 0.840253E+01<br> 3.115700 0.101635E+02 0.773289E+01 0.967885E+01 0.862621E+01<br> 3.142920 0.100111E+02 0.788606E+01 0.943221E+01 0.884344E+01<br> 3.170130 0.985438E+01 0.803905E+01 0.916144E+01 0.905336E+01<br> 3.197340 0.968977E+01 0.819396E+01 0.886127E+01 0.925482E+01<br> 3.224550 0.951042E+01 0.835134E+01 0.852279E+01 0.944370E+01<br> 3.251760 0.930644E+01 0.850635E+01 0.813391E+01 0.960784E+01<br> 3.278970 0.907005E+01 0.864454E+01 0.768651E+01 0.972112E+01<br> 3.306180 0.880477E+01 0.874446E+01 0.719035E+01 0.974574E+01<br> 3.333400 0.852950E+01 0.878800E+01 0.668320E+01 0.964789E+01<br> 3.360610 0.827390E+01 0.877177E+01 0.622588E+01 0.942247E+01<br> 3.387820 0.806367E+01 0.871175E+01 0.587015E+01 0.910544E+01<br> 3.415030 0.790887E+01 0.863257E+01 0.563190E+01 0.874847E+01<br> 3.442240 0.780793E+01 0.855474E+01 0.550403E+01 0.838886E+01<br> 3.469450 0.775547E+01 0.849452E+01 0.547832E+01 0.805342E+01<br> 3.496660 0.774217E+01 0.846608E+01 0.554241E+01 0.777091E+01<br> 3.523880 0.775503E+01 0.847907E+01 0.567102E+01 0.756594E+01<br> 3.551090 0.778089E+01 0.853846E+01 0.583142E+01 0.744943E+01<br> 3.578300 0.780708E+01 0.864746E+01 0.599300E+01 0.741878E+01<br> 3.605510 0.781918E+01 0.880798E+01 0.613114E+01 0.746278E+01<br> 3.632720 0.779987E+01 0.901851E+01 0.622846E+01 0.756557E+01<br> 3.659930 0.772990E+01 0.927160E+01 0.627383E+01 0.771066E+01<br> 3.687140 0.758936E+01 0.955143E+01 0.625801E+01 0.788224E+01<br> 3.714360 0.736268E+01 0.982873E+01 0.617118E+01 0.805946E+01<br> 3.741570 0.705393E+01 0.100621E+02 0.601165E+01 0.821063E+01<br> 3.768780 0.669456E+01 0.102205E+02 0.579803E+01 0.830148E+01<br> 3.795990 0.632421E+01 0.103016E+02 0.556923E+01 0.831345E+01<br> 3.823200 0.596724E+01 0.103236E+02 0.536718E+01 0.825616E+01<br> 3.850410 0.562770E+01 0.103068E+02 0.521520E+01 0.816007E+01<br> 3.877620 0.529722E+01 0.102594E+02 0.511282E+01 0.805541E+01<br> 3.904840 0.496895E+01 0.101736E+02 0.504769E+01 0.795977E+01                                            </div></body>
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