quantum-espresso/tests/relax-el.in

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&control
calculation='relax'
tefield = .true.,
/
&system
ibrav= 1,
celldm(1) =10.0,
nat=2,
ntyp= 2,
edir=3
eamp=0.001
emaxpos=0.5
eopreg=0.1
ecutwfc =25,
ecutrho =300,
/
&electrons
mixing_beta = 0.5,
conv_thr = 1.0d-8
/
&ions
/
ATOMIC_SPECIES
O 0.0 O.pz-rrkjus.UPF
C 0.0 C.pz-rrkjus.UPF
ATOMIC_POSITIONS BOHR
O 0.000000000 0.000000000 -1.1
C 0.000000000 0.000000000 1.1
K_POINTS
1
0.0 0.0 0.0 1.0