<div dir="ltr"><div>Dear Ali</div>
<div>First check your input file with xcrysden . then check ecut and ecutrho(8-10 times of ecut is good).then use</div>
<div>&ions</div>
<div>pot_extrapolation='second_order',</div>
<div>wfc_extrapolation='second_order',</div>
<div>good luck</div>
<div>Mansoureh <br><br></div>
<div class="gmail_quote">On Mon, Sep 8, 2008 at 11:41 AM, ali kazempoor <span dir="ltr"><<a href="mailto:kazempoor2000@yahoo.com">kazempoor2000@yahoo.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Dear all<br> For test ,I constructed a simple Ni nanowire along [001] and I want to calculate the magnetic anisotropy energy. I get the full relativistic pseudopotential and lattice constant from example 26 of espresso.But for relaxation with nanocoliin and lspinorbit switch it does'nt converge . where is the error or which paprameter must be modified?<br>
thanks<br>Ali Kazempour,Isfahan univ .Of .Tech,Iran<br> &control<br> title = ni ,<br> calculation = 'relax' ,<br> restart_mode = 'from_scratch' ,<br> tstress = .true.<br>
tprnfor = .true.<br> outdir = '/scratch19/user14/' ,<br> pseudo_dir = './' ,<br> prefix = ni111 ,<br> /<br> &system<br> ibrav= 6, celldm(1)=19.95, celldm(3)=0.3333333,nat=5, ntyp=1,<br>
ecutwfc = 40 , ecutrho =400,<br> lspinorb=.true.,<br> noncolin=.true.,<br> starting_magnetization(1)=0.8,<br> degauss=0.001,<br> smearing='mp',<br> angle1(1)=60<br> angle2(1)=90<br> occupations='smearing',<br>
ecutwfc =40<br> ecutrho =500.0<br><br> /<br> &electrons<br> conv_thr = 1.0d-4<br> mixing_beta = 0.8<br>/<br>&IONS<br>ion_dynamics='bfgs'<br>/<br>ATOMIC_SPECIES<br> Ni 28.0 NirelPBE.RRKJ3.UPF<br>
ATOMIC_POSITIONS crystal<br> Ni 0.5 0.5 0.0<br> Ni 0.3333333 0.5 0.5<br> Ni 0.5 0.66666666 0.5<br> Ni 0.6666666 0.5 0.5<br> Ni 0.5 0.33333333 0.5<br>
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</blockquote></div><br></div>