Dear allI tried to relax Fe (110) slab , but it doesn't converge. It takes very
long time even though it is small slab with only 45 atoms. I tried f-d, m-p
smearing but to no avail.Can you help me please ? to know what is wrong with my
input file attached below:
&CONTROL calculation = "relax" prefix = 'x' outdir = '/scratch'
pseudo_dir = '/xx/' !restart_mode = 'restart' forc_conv_thr = 1.0e-03
etot_conv_thr = 1e-04 nstep = 9999
/
&SYSTEM ibrav = 0 ecutrho = 150 ecutwfc = 30 nat = 45
ntyp = 1 occupations ='smearing' , smearing='f-d' , degauss=0.005
vdw_corr = 'DFT-D3' nspin = 2 starting_magnetization(1) = 0.1/&ELECTRONS
conv_thr = 1e-06 electron_maxstep = 9999 mixing_mode ='local-TF'
mixing_beta = 0.3/
&IONS/
K_POINTS {automatic}2 2 1 0 0 0
ATOMIC_SPECIESFe 55.845 Fe.pbe-spn-kjpaw_psl.0.2.1.UPFCELL_PARAMETERS
{angstrom} 7.4474000931 0.0000000000 0.0000000000
2.4824640508 7.0214770799 0.0000000000 0.0000000000
0.0000000000 25.1350002289ATOMIC_POSITIONS (angstrom)Fe
5.5818789877 2.5026591675 10.5421792561 0 0 0Fe
4.1125866520 4.8151882619 10.6772393880Fe 2.1958530690
7.2414707420 10.3206255931Fe 1.1033564060
1.9504258780 0.0000000000 0 0 0Fe 1.1240846033
1.9239546627 4.4015746387Fe 0.5929191720 2.2727761723
9.2300878464 0 0 0Fe 1.9418633362 0.7673280599
2.1503683749Fe 1.8505911190 0.7816285240
6.8697562640Fe 3.5857982640 1.9504258780 0.0000000000
0 0 0Fe 3.6010156782 2.0356057803 4.4040536951Fe
3.3892107507 2.4333408596 9.2315052153 0 0 0Fe
4.4107991582 0.7671459373 2.2844419078Fe
4.3403612910 0.9089118831 6.8687340519Fe 6.0682401770
1.9504258780 0.0000000000 0 0 0Fe 6.0921186925
1.9492701251 4.5081309218Fe 6.8957462620
0.7801563310 2.0268864960 0 0 0Fe 6.8261914569
0.9046029160 6.7661838994Fe 1.8724868770 4.4014805858
-0.2143812725Fe 1.8485507821 4.2994702275
4.3824953904 0 0 0Fe 1.8240284641 4.7344494204
9.2345798280Fe 2.7582676160 3.1206253240 2.0268864960
0 0 0Fe 2.6683169740 3.1739888190 6.8797363658Fe
4.3474449433 4.3631009861 -0.1911888976Fe
4.3246850209 4.4213381253 4.3668090656 0 0 0Fe
5.2753804683 3.1017230426 2.1588431075Fe 5.1435681580
3.2467521647 6.6302721725 0 0 0Fe 6.8866553226
4.2727158920 -0.2151129276Fe 6.8148177194
4.3601995734 4.3973105493Fe 6.4979897094 4.6088015071
9.2447583930 0 0 0Fe 7.7586179448 3.1003648378
2.1698200674Fe 7.6317422302 3.2430726605
6.8687193850 0 0 0Fe 2.7205563083 6.7460510219
-0.2000658247Fe 2.7608454757 6.6172987829
4.5215696688Fe 3.5857721560 5.4611644180 2.0268864960
0 0 0Fe 3.6115378719 5.4595736549 6.6122865627Fe
5.2407577750 6.6313638640 0.0000000000 0 0 0Fe
5.2548206739 6.7098271636 4.3861096452Fe
4.8691076063 6.9050837980 9.2329583714Fe 6.0682884220
5.4611644180 2.0268864960 0 0 0Fe 6.1028694761
5.5498338413 6.8798135598Fe 7.7231996880
6.6313638640 0.0000000000 0 0 0Fe 7.7426438544
6.6251084192 4.3864901090Fe 7.3977446239 6.9684054207
9.2402605725Fe 8.5507305580 5.4611644180
2.0268864960 0 0 0Fe 8.6014581434 5.5444835700
6.8763383415
_______________________________________________
Quantum ESPRESSO is supported by MaX (www.max-centre.eu)
users mailing list users@lists.quantum-espresso.org
https://lists.quantum-espresso.org/mailman/listinfo/users