[Pw_forum] relax-spinorbit

ali kazempoor kazempoor2000 at yahoo.com
Mon Sep 8 10:11:58 CEST 2008


Dear all
 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?
thanks 
Ali Kazempour,Isfahan univ .Of .Tech,Iran
   &control
          title = ni ,
                 calculation = 'relax' ,
                restart_mode = 'from_scratch' ,
                   tstress = .true.
                      tprnfor = .true.
                    outdir = '/scratch19/user14/' ,
                  pseudo_dir = './' ,
                      prefix = ni111 ,
 /
 &system
    ibrav=  6, celldm(1)=19.95, celldm(3)=0.3333333,nat=5, ntyp=1,
    ecutwfc = 40 ,  ecutrho =400,
    lspinorb=.true.,
    noncolin=.true.,
    starting_magnetization(1)=0.8,
    degauss=0.001,
    smearing='mp',
    angle1(1)=60
    angle2(1)=90
    occupations='smearing',
    ecutwfc =40
    ecutrho =500.0

 /
 &electrons
         conv_thr =  1.0d-4
         mixing_beta = 0.8
/
&IONS
ion_dynamics='bfgs'
/
ATOMIC_SPECIES
 Ni  28.0  NirelPBE.RRKJ3.UPF
ATOMIC_POSITIONS crystal
   Ni      0.5         0.5         0.0
   Ni      0.3333333   0.5         0.5
   Ni      0.5         0.66666666  0.5
   Ni      0.6666666   0.5         0.5
   Ni      0.5         0.33333333  0.5
K_POINTS automatic
  1 1 50   0 0 1



      


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