Dear all,
I modified the files from DFPT tutorial and wanted to generate the phonon dispersion of bulk VSe2. However, the result looks really strange with negative frequency (energy). I checked my inputs several times to see whether they satisfy VSe2, but I couldn’t find it.
Hope someone can help my problem. Thank you!
Here are my steps:
-
Run abinit VSe2_1_1.abi >log 2>err &
VSe2_1_1.abi (5.8 KB) -
Run mrgddb < VSe2_1_3.abi to combine all DDB files
VSe2_1_3.abi (903 Bytes) -
Run anaddb < VSe2_1_5.files > VSe2_1_5.log
VSe2_1_5.abi (5.7 KB)
VSe2_1_5.files
VSe2_1_5.abi
VSe2_1_5.abo
VSe2_1_3.ddb.out
VSe2_1_5_band2eps
VSe2_1_dummy1
VSe2_1_dummy2
VSe2_1_dummy3 -
Run abiopen.py trf2_5_PHBST.nc --expose --seaborn=talk to plot the phonon dispersion bands