<div dir="ltr"><div dir="ltr"><div>Hi Hari,</div><div>Thanks for the reply. As suggested by  you, I have checked the lattice parameters and atomic positions in output of vc-relax and both are present. I am sending you the input file. kindly help me out in resolving the issue.</div><div><br></div><div><br></div><div><br></div><div><br> &CONTROL<br>                       title = 'MnF-slab' ,<br>                 calculation = 'vc-relax' ,<br>                restart_mode = 'from_scratch' ,<br>                      outdir = '/home/p20170414/MnF-slab/' ,<br>                      wfcdir = '/home/p20170414/MnF-slab/' ,<br>                  pseudo_dir = '/opt/apps/quantum_espresso/qe-6.1/pseudo/pslibrary.1.0.0/pbe/PSEUDOPOTENTIALS/' ,<br>                      prefix = 'pwscf' ,<br>                   verbosity = 'high' ,<br> /<br> &SYSTEM<br>                       ibrav = 0,<br>                   celldm(1) = 11.3557527319d0,<br>                         nat = 28,<br>                        ntyp = 3,<br>                     ecutwfc = 40 ,<br>                     ecutrho = 480 ,<br>                   input_dft = 'pbe' ,<br>                 occupations = 'smearing' ,<br>                     degauss = 0.005d0 ,<br>                    smearing = 'methfessel-paxton' ,<br>                       nspin = 2 ,<br>   starting_magnetization(1) = 0.5,<br>                  lda_plus_u = .true. ,<br>             lda_plus_u_kind = 0 ,<br>                Hubbard_U(1) = 1.769,<br>                Hubbard_U(2) = 6.531,<br>                    vdw_corr = 'grimme-d2' ,<br> /<br> &ELECTRONS<br>           scf_must_converge = .false. ,<br>                    conv_thr = 1d-06 ,<br>                 mixing_mode = 'local-TF' ,<br>                 mixing_beta = 0.7d0 ,<br> /<br> &IONS<br>                ion_dynamics = 'bfgs' ,<br> /<br> &CELL<br>               cell_dynamics = 'bfgs' ,<br> /<br>CELL_PARAMETERS alat <br>     1.000000000    0.000000000    0.000000000 <br>    -0.500000000    0.866025404    0.000000000 <br>     0.000000000    0.000000000    3.297106646 <br>ATOMIC_SPECIES<br>   Fe   55.84500  Fe.pbe-n-rrkjus_psl.1.0.0.UPF <br>   Mn   54.93800  Mn.pbe-spn-rrkjus_psl.1.0.0.UPF <br>    O   15.99940  O.pbe-n-rrkjus_psl.1.0.0.UPF <br>ATOMIC_POSITIONS crystal <br>   Fe      0.000000000    0.000000000    0.030955041    <br>    O      0.363288149    0.181644075    0.064691840    <br>    O      0.818355924    0.181644075    0.064691840    <br>    O      0.818355924    0.636711850    0.064691840    <br>    O      0.333333334    0.666666667    0.070255356    <br>   Mn      0.500000000    0.000000000    0.123820165    <br>   Mn      0.000000000    0.500000000    0.123820165    <br>   Mn      0.500000000    0.500000000    0.123820165    <br>    O      0.666666666    0.333333333    0.177384975    <br>    O      0.181644076    0.363288150    0.182948491    <br>    O      0.181644076    0.818355925    0.182948491    <br>    O      0.636711851    0.818355925    0.182948491    <br>   Fe      0.000000000    0.000000000    0.216685290    <br>   Mn      0.333333333    0.666666667    0.247640331    <br>   Fe      0.666666667    0.333333333    0.278595372    <br>    O      0.029954816    0.514977408    0.312332171    <br>    O      0.485022591    0.514977408    0.312332171    <br>    O      0.485022591    0.970045183    0.312332171    <br>    O      0.000000001    0.000000000    0.317895687    <br>   Mn      0.166666667    0.333333333    0.371460496    <br>   Mn      0.166666667    0.833333333    0.371460496    <br>   Mn      0.666666667    0.833333333    0.371460496    <br>    O      0.333333333    0.666666666    0.425025306    <br>    O      0.303378517    0.151689259    0.430588821    <br>    O      0.848310742    0.151689259    0.430588821    <br>    O      0.848310742    0.696621484    0.430588821    <br>   Fe      0.666666667    0.333333333    0.464325620    <br>   Mn      0.000000000    0.000000000    0.495280662    <br>K_POINTS automatic <br>  4 4 1   0 0 0 <br><br><br></div><div><br></div><div><br></div><div>
<div><i><b>Priyanka Makkar</b></i></div><div><b>Research Scholar</b></div><div><b>BITS Pilani K K Birla Goa Campus</b></div><div><b>India</b></div>

</div><div><br></div><div><br></div><div><br></div><br><div class="gmail_quote"><div dir="ltr">On Tue, Sep 25, 2018 at 7:54 PM Hari Paudyal <<a href="mailto:hpaudya1@binghamton.edu" target="_blank">hpaudya1@binghamton.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<div dir="ltr">Hi Priyanka,<div><br></div><div>If you provide your input/output file then it would be easy to figure out the problem exactly. This time I can only guess based on my experience using xcrysden. In each bfgs step you get lattice parameters and atomic position written in the output of vc-relax, I think you are missing those information. You can check your output if the system is relaxed correctly writing the output. Let us know, if any.</div><div><br></div><div>Best,</div><div>Hari Paudyal</div><div>SUNY Binghamton, NY</div></div><br><div class="gmail_quote"><div dir="ltr">On Tue, Sep 25, 2018 at 4:41 AM Priyanka Makkar <<a href="mailto:p20170414@goa.bits-pilani.ac.in" target="_blank">p20170414@goa.bits-pilani.ac.in</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr"><div>Hello all,</div><div>I am doing the calculation for making a slab of MnFe2O4 but the output file is not opening in xcrysden after vc relax. It is giving the following error as shown below. kindly help in getting the solution.</div><div><br></div><div>Your reply will be grateful.<br></div><div><br></div><div><br></div><div><br>   Operating system : Linux<br>[p20170414@kosambi ~]$ Package ImageMagick's convert: /usr/bin/convert<br>Package ImageMagick's import: /usr/bin/import<br>Package Xwd: /usr/bin/xwd<br>Executing: /opt/apps/xcrysden/bin/ftnunit<br>PWSCF version of the output: 6.1<br>TEXT-WIDGET: .a1.f1.t<br>PWSCF version of the output: 6.1<br>TEXT-WIDGET: .a2.f1.t<br>Executing: /usr/bin/gawk -f /opt/apps/xcrysden/Awk/pwo_coortype.awk /home/p20170414/MnF-Slab/MnF-vc-relax.pw.out<br>ctypes = 0<br>pwOutputPresetWhat: /opt/apps/xcrysden/scripts/pwo2xsf.sh --latestcoor /home/p20170414/MnF-Slab/MnF-vc-relax.pw.out<br>Executing: sh /opt/apps/xcrysden/scripts/pwo2xsf.sh --latestcoor /home/p20170414/MnF-Slab/MnF-vc-relax.pw.out > pwo2xsf.xsf<br>Executing: sh /opt/apps/xcrysden/scripts/dummy.sh /home/p20170414/MnF-Slab/MnF-vc-relax.pw.out<br>Number of Atoms:  0<br>Number of Frames: 0<br>Estimated number of bonds = 0<br>sInfo(dim) = 0; periodic(dim) = 0<br><br><br></div></div></div>
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</blockquote></div><br clear="all"><br>-- <br><div dir="ltr" class="gmail-m_5551606442854721724gmail_signature"><div dir="ltr"><div><i><b>Priyanka Makkar</b></i></div><div><b>Research Scholar</b></div><div><b>BITS Pilani K K Birla Goa Campus</b></div><div><b>India</b><br></div></div></div></div></div>