<P>Dear all:<BR>bands.x can be used to analyse the band symmetry, as <BR>demonstrated in example04 in PP directory.<BR>But when I run this example, I get different result<BR>with the reference data for Gamma point.<BR>---------------------------------------------------------------<BR>reference in example04:<BR>xk=( 0.00000, 0.00000, 0.00000 )<BR>...<BR>Band symmetry, O_h (m-3m) double point group:</P>
<P> e( 1 - 2) = 7.27272 eV 2 --> G_6+<BR> e( 3 - 6) = 13.29785 eV 4 --> G_8+<BR> e( 7 - 8) = 14.29146 eV 2 --> G_7+<BR> e( 9 - 12) = 16.11924 eV 4 --> G_8+<BR> e( 13 - 14) = 38.36105 eV 2 --> G_6-<BR> e( 15 - 18) = 39.65390 eV 4 --> G_8-<BR>-----------------------------------------------------------------<BR>my results (from QE-5.0.1 and QE-5.0.2)<BR> Band symmetry, O_h (m-3m) double point group:</P>
<P> e( 1 - 2) = 7.27271 eV 2 --> G_6+<BR> e( 3 - 6) = 13.29786 eV 4 --> G_8+<BR> e( 7 - 8) = 14.29147 eV 2 --> G_7+<BR> e( 9 - 12) = 16.11925 eV 4 --> G_8+<BR> e( 13 - 14) = 34.84024 eV 2 --> G_7-<BR> e( 15 - 16) = 38.36105 eV 2 --> G_6-<BR> e( 17 - 18) = 39.65390 eV 2 --> ?<BR>-----------------------------------------------------------------<BR>What is the reason for the differences ranging form 13-th band to 18-th band?<BR>Does it relate to different compiled libraries?<BR>Any help will be appreciated.</P>
<P>Best</P>
<P>Miao Gao</P>
<P>--------------------------------------------------<BR>Ph.D. student of Department of Physics, <BR>Renmin University of China.<BR>--------------------------------------------------<BR><BR><BR><BR></P><SPAN></SPAN><br><br>