<div dir="ltr"><div><div><div>Dear Prof. Blaha and wien2k users,<br><br></div>I want to calculate phonon properties of CuBS2 chalcopyrite structure by means of PHONON 6.10 software. <br><br></div>After
created case.d45 file, scf calcultaion for all cases have finished
without error. (convergence criteria: ec :0.0001 Ry cc :0.001 e and fc
:0.1 mRy/a.u and RKmax:6 and 8-kpoint)<br><br><br></div><div>in terminal, : one can see:<br></div><div><br></div><div>yalcin@yalcin-superpc:~/Desktop/phon610_64/run/CuBS2_2x2x1$ grep "Sum" *_8K.scf<br>case_1_PBE_RKM6.00_8K.scf::FCHECK: Sum of forces -0.006465023 0.005725508 0.002114469<br>case_2_PBE_RKM6.00_8K.scf::FCHECK: Sum of forces 0.000000000 0.000000000 0.004102549<br>case_3_PBE_RKM6.00_8K.scf::FCHECK: Sum of forces 0.000000000 0.000000000 -0.017363207<br>case_4_PBE_RKM6.00_8K.scf::FCHECK: Sum of forces 0.000457910 -0.038465946 0.017802203<br>case_5_PBE_RKM6.00_8K.scf::FCHECK: Sum of forces 0.003561049 -0.011319303 -0.006378147<br>case_6_PBE_RKM6.00_8K.scf::FCHECK: Sum of forces 0.037181721 -0.020520483 -0.000281537<br>case_7_PBE_RKM6.00_8K.scf::FCHECK: Sum of forces 0.000000000 0.000000000 0.008966570<br><br></div><div>But, When I used the command "analyse_phonon" or "analyse_phonon case.d45" <br><br>*************************<br>Should the analysis be made using case_*/case_*_lda_rkm6.00_8k.scf -files ? (Y/n)<br>n<br>Enter the part of the filename which identifies the scf-files uniquely<br>(e.g. enter "_gga_rkm7.5_100k" for case_*/case_*_gga_rkm7.5_100k.scf)<br>_PBE_RKM6.00_8K<br> Program generates Phonon-Hellman-Feynman file from WIEN calculations<br> <br> Filename of phonon file: <br> CuBS2_2x2x1.d45 <br>Sum of forces (should be zero) for case 1: -0.0065 0.0057 0.0021<br>Sum of forces (should be zero) for case 2: 0.0000 0.0000 0.0041<br><u><b>pos_case not found</b></u><br>The HF-force file CuBS2_2x2x1.dat for phonon has been produced.<br>The symmetrized HF-force file CuBS2_2x2x1.dsy for phonon has been produced.<br><br>**************************************************************************<br></div><div>The
sum of forces are created for only case 1 and 2, and then "pos case not
found". I m not sure this error is important or not. But, using the
created case.hff file, phonon software is not working. <br><br>( First, I have tested for "Si" element and PHONON worked without error.) <br><br><br><br></div><div>What is your recommendation?<br><br></div><div>Battal Gazi Yalcin<br></div><div>Sakarya University Department of Physics<br></div><div>Sakarya TURKEY</div></div>