Fcc Ni: Difference between revisions

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----
----
*INCAR
*{{TAG|INCAR}}
   SYSTEM = fcc Ni
   SYSTEM = fcc Ni
   ISTART = 0 ; ICHARG=2
   ISTART = 0 ; ICHARG=2
Line 13: Line 13:
   MAGMOM = 1
   MAGMOM = 1


*KPOINTS
*{{TAG|KPOINTS}}
  k-points
  k-points
   0
   0
Line 20: Line 20:
   0  0  0
   0  0  0


*POSCAR
*{{TAG|POSCAR}}
  fcc:
  fcc:
   3.53  
   3.53  
Line 58: Line 58:
  gnuplot
  gnuplot
  gnuplot> plot "SUMMARY.fcc" using ($1):($4) w lp
  gnuplot> plot "SUMMARY.fcc" using ($1):($4) w lp
== Used INCAR Tags ==
{{TAG|ENCUT}}, {{TAG|ICHARG}}, {{TAG|ISMEAR}}, {{TAG|ISPIN}}, {{TAG|ISTART}}, {{TAG|LORBIT}}, {{TAG|MAGMOM}}, {{TAG|SIGMA}}, {{TAG|SYSTEM}}


== Download ==
== Download ==
[http://www.vasp.at/vasp-workshop/examples/fccNi.tgz fccNi.tgz]
[http://www.vasp.at/vasp-workshop/examples/fccNi.tgz fccNi.tgz]
----
----
[[VASP_example_calculations|To the list of examples]] or to the [[The_VASP_Manual|main page]]
[[VASP_example_calculations|To the list of examples]] or to the [[The_VASP_Manual|main page]]


[[Category:Examples]]
[[Category:Examples]]

Revision as of 14:04, 16 February 2017

Description: fcc Ni (a spinpolarized metal). The bash-script loop.sh runs fcc Ni at several different lattice constants (3.0-3.9 Å) and collects free energy versus lattice constant into the file SUMMARY.fcc With the bash-scripts dos.sh and band.sh compute the DOS and bandstructure of fcc Ni, respectively.


 SYSTEM = fcc Ni
 ISTART = 0 ; ICHARG=2
 ENCUT  =    270
 ISMEAR =    1  ; SIGMA = 0.2
 LORBIT=11

 ISPIN=2
 MAGMOM = 1
k-points
 0
Monkhorst Pack
 11 11 11
 0  0  0
fcc:
 3.53 
 0.5 0.5 0.0
 0.0 0.5 0.5
 0.5 0.0 0.5
   1
cartesian
0 0 0
  • And a simple bash-script to loop over several lattice constants: loop.sh
#! /bin/bash
BIN=/path/to/your/vasp/executable
rm WAVECAR SUMMARY.fcc
for i in 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 ; do
cat >POSCAR <<!
fcc:
   $i
 0.5 0.5 0.0
 0.0 0.5 0.5
 0.5 0.0 0.5
   1
cartesian
0 0 0
!
echo "a= $i" ; mpirun -n 2 $BIN
E=`awk '/F=/ {print $0}' OSZICAR` ; echo $i $E  >>SUMMARY.fcc
done
cat SUMMARY.fcc

Mind: You will have to set the correct path to your VASP executable (i.e., BIN), and invoke VASP with the correct command (e.g., in the above: mpirun -np 2).

  • To make a quick plot of SUMMARY.fcc try:
gnuplot
gnuplot> plot "SUMMARY.fcc" using ($1):($4) w lp

Used INCAR Tags

ENCUT, ICHARG, ISMEAR, ISPIN, ISTART, LORBIT, MAGMOM, SIGMA, SYSTEM

Download

fccNi.tgz


To the list of examples or to the main page