System: fcc Cu (111), 3 layers
! Ab initio
PREC = Normal              # Precision tag
EDIFF = 1e-6               # Break condition for the global, electronic SC step
NELMIN = 5                 # No. of elec. SCF steps for each ionic step

! Smearing
ISMEAR = 1                 # First-order Methfessel-Paxton smearing
SIGMA = 0.2                # 0.2 eV smearing width

! IDM
NSW = 20                   # Max number of ionic steps
IBRION=44                  # Use the dimer method as optimization engine
EDIFFG=-0.01               # Break condition for ionic relaxation
