<div dir="ltr"><p dir="ltr">Dear all<br>
I am calculating the FM and AFM properties of CdCr2O4 with the 4 atoms
of Cr in fourteen-atom CdCr2O4 unit cell.In order to run the scf
calculation for FM in a cubic structure I have a few problems if anyone
can help me: 1. how can I find the actual number of
starting_magnetization? 2. how can I identify the different Cr (1 and 2)
in the ATOMIC_POSITION as i have 4 Cr? (below is the scf code of my
compound and fallowing that the NiO magnetic example that I am
fallowing)</p>
<p dir="ltr">scf code of CdCr204(FM) <br>
&control<br>
calculation='scf'<br>
/<br>
&system<br>
ibrav = 2, <br>
celldm(1)= 16.3782, <br>
.<br>
.<br>
nspin=2,<br>
starting_magnetization(1)= ?<br>
starting_magnetization(2)= ? <br>
/<br>
&ELECTRONS<br>
<br>
/ <br>
CELL_PARAMETERS</p>
<p dir="ltr">ATOMIC_SPECIES<br>
Cr1 51.9961 Cr.pbe-sp-van.UPF<br>
Cr2 51.9961 Cr.pbe-sp-van.UPF<br>
Cd 112.411 Cd.pbe-n-van.UPF<br>
O 15.9994 O.pbe-van_ak.UPF<br>
ATOMIC_POSITIONS (crystal)<br>
Cr ? 0.500000000 0.000000000 0.500000000<br>
Cr ? 0.000000000 0.500000000 0.500000000<br>
Cr ? 0.500000000 0.500000000 0.000000000<br>
Cr ? 0.500000000 0.500000000 0.500000000<br>
Cd 0.125000000 0.125000000 0.125000000<br>
Cd 0.875000000 0.875000000 0.875000000<br>
O 0.731036464 0.731036464 0.731036464<br>
O 0.268963536 0.268963536 0.693109391<br>
O 0.268963536 0.693109391 0.268963536<br>
O 0.693109391 0.268963536 0.268963536<br>
O 0.731036464 0.306890609 0.731036464<br>
O 0.306890609 0.731036464 0.731036464<br>
O 0.268963536 0.268963536 0.268963536<br>
O 0.731036464 0.731036464 0.306890609</p>
<p dir="ltr">scf code of NiO(FM)</p>
<p dir="ltr"> &control<br>
pseudo_dir = '../../pseudo',<br>
outdir='../../tmp'<br>
prefix='nio',<br>
/<br>
&system<br>
nspin=2, <br>
starting_magnetization(2)= 0.5, <br>
starting_magnetization(3)=0.5,<br>
/<br>
&electrons <br>
/<br>
CELL_PARAMETERS</p>
ATOMIC_SPECIES<br>
O 1. O.pbe-rrkjus.UPF<br>
Ni1 1. Ni.pbe-nd-rrkjus.UPF<br>
Ni2 1. Ni.pbe-nd-rrkjus.UPF<br>
ATOMIC_POSITIONS crystal<br>
O 0.25 0.25 0.25<br>
O 0.75 0.75 0.75<br>
Ni1 0.0 0.0 0.0 <br>
Ni2 0.5 0.5 0.5<br>
K_POINTS automatic<br>
4 4 4 0 0 0</div>