Re: [Wien] hf error -monolayer

2023-08-07 Thread Brik Hamida
Dear
This is the corresponding case.in2 :
TOT (TOT,FOR,STR,STRF,QTL,EFG,FERMI)
   -12.076.0   0.50 0.05  1   EMIN, NE, ESEPERMIN, ESEPER0, iqtlsave
TEMP   0.002   (GAUSS,ROOT,TEMP,TETRA,ALL  eval)
  0 0  1 0  2 0  3 0  3 3  4 0  4 3  5 0  5 3  6 0  6 3  6 6
  0 0  1 0  2 0  3 0  3 3  4 0  4 3  5 0  5 3  6 0  6 3  6 6
  0 0  1 0  2 0  3 0  3 3  4 0  4 3  5 0  5 3  6 0  6 3  6 6
  0 0  2 0  4 0  4 3  6 0  6 3  6 6
 16.0  GMAX
NOFILEFILE/NOFILE  write recprlist


According to this file and wien2k guide : TEMP =0.002 Ry  , so TEMP
=0.027211408 eV .
I guess , as TEMP in ryd, that TEMP =K*T
SO: T=Temperature = 0.0272 / K  .
T = 315 Kelvin
If what I wrote is correct, can I say that my DFT calculation with hf, is
carried at T= 315 Kelvin and not at 0K ?

Thanks
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Re: [Wien] hf error -monolayer

2023-08-07 Thread Brik Hamida
Dear
I resolved the problem for  in.0  and hf calculation is OK.

but I have only one question  :  The band number 39 is occupied. In
case.inhf, I put 42 as nband. But in the  band structure plot  , this band
(n°39) is considered as conduction band  . As I know ,  DFT-calculation by
wien2k are carried at 0 K so conduction bands are empty. Can you explain to
me why ?  For gap measure , It is correct to consider the band n°40  and to
neglect n°39 ?

 Bandranges (emin - emax) and occupancy:
:BAN00028:  28   -0.520893   -0.454922  2.
:BAN00029:  29   -0.487152   -0.331808  2.
:BAN00030:  30   -0.472918   -0.313619  2.
:BAN00031:  31   -0.463319   -0.313618  2.
:BAN00032:  32   -0.420214   -0.310150  2.
:BAN00033:  33   -0.394617   -0.310149  2.
:BAN00034:  34   -0.386205   -0.263917  2.
:BAN00035:  35   -0.345706   -0.263915  2.
:BAN00036:  36   -0.239153   -0.229298  2.
:BAN00037:  37   -0.238511   -0.212695  2.
:BAN00038:  38   -0.215841   -0.185995  1.9824
:BAN00039:  39   -0.135426   -0.106796  0.0176
:BAN00040:  40   -0.105527   -0.051478  0.
:BAN00041:  41   -0.045448   -0.019097  0.
:BAN00042:  42   -0.045236   -0.004541  0.
:BAN00043:  43   -0.0175460.080309  0.
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Re: [Wien] hf error -monolayer

2023-07-27 Thread Brik Hamida
Dear ,

*) You mentioned that the first bulk MoS2 calculation worked also with hf, but
the second one not. What is the difference between them ?

 No difference between them

*)Did you use the init_hf  script properly ?

I think yes. I do : 1) pbe calculation + save_lapw
2)init_hf_lapw
   3)set NBAND to at least  NB_occ + 1 (edit case.inhf)

   4)run_kgenhf_lapw


Prepare k-mesh for HF. You may want to use a (commensurate) REDUCED k-mesh
for the HF-potential to save cpu-time.
  with k-mesh (eg. 4x4x4):  nx= ny= nz=
  with commensurate reduced k-mesh (eg. 2x2x2):  nx= ny= nz=


*5) run_lapw -hf -redklist*

**) *The error is due to bulk.in0. What is in this file ?

*case.n0 :*
TOT  XC_PBE (XC_LDA,XC_PBESOL,XC_WC,XC_MBJ,XC_SCAN)
NR2V

*case.in0_grr*
KXC EX_SPBE VX_SPBE (XC_LDA,XC_PBESOL,XC_WC,XC_MBJ,XC_REVTPSS)
R2V


The two files case.in0 and case.in0_grr seem to be incomplete . I don't
know why .However,when the pbe calculation finished , the file  case.in0
is complete:
 TOT  XC_PBE (XC_LDA,XC_PBESOL,XC_WC,XC_MBJ,XC_SCAN)

NR2V  IFFT  (R2V)
   32   32  1202.00  1 NCON 9  # min IFFT-parameters, enhancement
factor, iprint, NCON n

can you help me
thanks
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[Wien] hf error -monolayer

2023-07-24 Thread Brik Hamida
Dear
I succeeded in installing Wien2k.23.2 as you advised me.
Now , Init_lapw and run_lapw finished ok .
Again , I tried to do hf_calculation for MoS2.bulk , the hf_calculation is
well done. I tried hf_calculation for the second time for MoS2 bulk, there
is a stop error.
I tried for another bulk or monolayer , there is also the same stop error :

*)Show dayfile:

Calculating bulk in /home/hmd/WIEN2k/bulk
on hmd-host with PID 9994
using WIEN2k_23.2 (Release 9/3/2022) in /home/hmd/wien23


start (24 جويلية, 2023 CET 11:03:15 م) with lapw0 (40/99 to go)

cycle 1 (24 جويلية, 2023 CET 11:03:15 م) (40/99 to go)

>   lapw0 -grr   (23:03:15) 3.254u 0.450s 0:00.60 616.6% 0+0k 200+8024io
1pf+0w
>   lapw0   (23:03:15) 2.475u 0.398s 0:00.41 697.5% 0+0k 0+3272io 0pf+0w
>   lapw1   (23:03:16) 5.567u 3.987s 0:01.23 775.6% 0+0k 0+10624io
8pf+0w
>   lapw1   (23:03:17) 17.785u 12.705s 0:03.99 763.9% 0+0k 0+31400io
15pf+0w
>   lapw2 -fermi   (23:03:21) 0.106u 0.165s 0:00.03 866.6% 0+0k
0+1032io 3pf+0w
>   lapw2 -hf -redklist -fermi   (23:03:21) 0.103u 0.134s 0:00.03
766.6% 0+0k 0+776io 4pf+0w
>   lapw2 (23:03:21) 1.969u 2.892s 0:00.75 646.6% 0+0k 0+2856io
6pf+0w
>   lcore   (23:03:22) 0.064u 0.004s 0:00.06 100.0% 0+0k 0+2736io 0pf+0w
>   hf   -mode1   -redklist   (23:03:22) 3.033u 2.426s 0:00.71 767.6%
0+0k 5880+48io 45pf+0w
error: command   /home/hmd/wien23/hf hf.def   failed

>   stop error

*) Show STDOUT:
STOP  LAPW0 END
STOP  LAPW0 END
STOP  LAPW1 END
STOP  LAPW1 END
STOP LAPW2 - FERMI; weights written
STOP LAPW2 - FERMI; weights written
STOP  LAPW2 END
STOP  CORE  END
At line 126 of file read_rhoval.f (unit = 5, file = 'bulk.in0')
Fortran runtime error: End of file

Error termination. Backtrace:
#0  0x14d1a14c4d21 in ???
#1  0x14d1a14c5869 in ???
#2  0x14d1a14c654f in ???
#3  0x14d1a1709c5b in ???
#4  0x14d1a1702e26 in ???
#5  0x14d1a1703dc9 in ???
#6  0x564c506194f6 in ???
#7  0x564c50609a44 in ???
#8  0x564c505434de in ???
#9  0x14d1a113e082 in __libc_start_main
at ../csu/libc-start.c:308
#10  0x564c5054350d in ???
#11  0x in ???

>   stop error
*)Error files:
home/hmd/WIEN2k/bulk/hf.error  : error in hf

I would like to note that I have the same situation with wien17, wien18 and
wien14 as I mentioned in the previous messages .
Can Someone help me please .
Thanks
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Re: [Wien] lapw0.def failed

2023-07-21 Thread Brik Hamida
hmd@hmd-host:~/wien2k23$ grep -i "error" */compile.msg | grep -v -e
arguments -e xerror |grep -v know

SRC_3ddens/compile.msg:fft_modules.F:174: Error: Can't open included file
'fftw3.f03'
SRC_3ddens/compile.msg:make: *** [Makefile:84: fft_modules.o] Error 1
SRC_hf/compile.msg:modules_tmp_.F:108: Error: Can't open included file
'fftw3.f03'
SRC_hf/compile.msg:make[1]: *** [Makefile:281: modules.o] Error 1
SRC_hf/compile.msg:make: *** [Makefile:181: real] Error 2
SRC_hf/compile.msg:modules_tmp_.F:108: Error: Can't open included file
'fftw3.f03'
SRC_hf/compile.msg:make[1]: *** [Makefile:281: modules.o] Error 1
SRC_hf/compile.msg:make: *** [Makefile:185: complex] Error 2
SRC_lapw0/compile.msg:Fatal Error: Cannot open module file
‘xc_f03_lib_m.mod’ for reading at (1): No such file or directory
SRC_lapw0/compile.msg:make[1]: *** [Makefile:176: libxc_mod.o] Error 1
SRC_lapw0/compile.msg:make: *** [Makefile:125: seq] Error 2
SRC_lapw2/compile.msg:modules_tmp_.F:603: Error: Can't open included file
'fftw3.f03'
SRC_lapw2/compile.msg:make[1]: *** [Makefile:270: modules.o] Error 1
SRC_lapw2/compile.msg:make: *** [Makefile:169: real] Error 2
SRC_lapw2/compile.msg:modules_tmp_.F:603: Error: Can't open included file
'fftw3.f03'
SRC_lapw2/compile.msg:make[1]: *** [Makefile:270: modules.o] Error 1
SRC_lapw2/compile.msg:make: *** [Makefile:173: complex] Error 2
SRC_nlvdw/compile.msg:fft_modules.F:174: Error: Can't open included file
'fftw3.f03'
SRC_nlvdw/compile.msg:make[1]: *** [Makefile:159: fft_modules.o] Error 1
SRC_nlvdw/compile.msg:make: *** [Makefile:110: seq] Error 2
SRC_nmr/compile.msg:modules_tmp_.F:1345: Error: Can't open included file
'fftw3.f03'
SRC_nmr/compile.msg:make[1]: *** [Makefile:263: modules.o] Error 1
SRC_nmr/compile.msg:make: *** [Makefile:163: real] Error 2
SRC_nmr/compile.msg:modules_tmp_.F:1345: Error: Can't open included file
'fftw3.f03'
SRC_nmr/compile.msg:make[1]: *** [Makefile:263: modules.o] Error 1
SRC_nmr/compile.msg:make: *** [Makefile:167: complex] Error 2
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Re: [Wien] lapw0.def failed

2023-07-20 Thread Brik Hamida
Yes, there are many errors.

How can I solve the problem ?
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Re: [Wien] lapw0.def failed

2023-07-20 Thread Brik Hamida
Dear

There is no such lapw0 in the directory : home/hmd/wien2k23
but there are  lapw0para and  lapw0para_lapw  ( the same for lapw2 )
What should I do ?
Thanks
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Re: [Wien] lapw0.def failed

2023-07-20 Thread Brik Hamida
Dear
*) For initialisation :

Init_lapw finished ok !
hmd@hmd-host:~/WIEN2k/MoS2monolayer$ cat *.in0
TOT  XC_PBE (XC_LDA,XC_PBESOL,XC_WC,XC_MBJ,XC_SCAN)
NR2V  IFFT  (R2V)
   32   32  3002.00  1 NCON 9  # min IFFT-parameters, enhancement
factor, iprint, NCON n


*)When I run_lapw  :

1) show dayfile :

Calculating MoS2monolayer in /home/hmd/WIEN2k/MoS2monolayer
on hmd-host with PID 5078
using WIEN2k_23.2 (Release 9/3/2022) in /home/hmd/wien2k23


start   (20 جويلية, 2023 CET 10:39:58 م) with lapw0 (40/99 to go)

cycle 1 (20 جويلية, 2023 CET 10:39:58 م) (40/99 to go)

>   lapw0   (22:39:58) 0.000u 0.000s 0:00.00 0.0%   0+0k 0+8io 0pf+0w
error: command   /home/hmd/wien2k23/lapw0 lapw0.def   failed

>   stop error

2) show STDOUT:

/home/hmd/wien2k23/lapw0: Command not found.
grep: *scf1*: No such file or directory
grep: lapw2*.error: No such file or directory
grep: lapw2*.error: No such file or directory
grep: lapw2*.error: No such file or directory
grep: lapw2*.error: No such file or directory
grep: lapw2*.error: No such file or directory
grep: lapw2*.error: No such file or directory
grep: lapw1*.error: No such file or directory
grep: lapw1*.error: No such file or directory

>   stop error

*)Error files :
 No error files .

Thanks
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[Wien] lapw0.def failed

2023-07-19 Thread Brik Hamida
Dear,

I installed wien2k_23.2 using this video :
https://www.youtube.com/watch?v=wXCbK2WuZVw

When I do the run_lapw command in terminal or start SCF cycle , I have this
problem :

start   (20 جويلية, 2023 CET 12:13:45 ص) with lapw0 (40/99 to go)

cycle 1 (20 جويلية, 2023 CET 12:13:45 ص) (40/99 to go)

>   lapw0   (00:13:45) 0.000u 0.000s 0:00.00 0.0%   0+0k 0+0io 0pf+0w
error: command   /home/hmd/wien2k23/lapw0 lapw0.def   failed

>   stop error



Please can someone help me.Thanks

Best regards
Brik
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Re: [Wien] hf error -monolayer

2023-06-24 Thread Brik Hamida
I m using wien2k_18.2.

I tried to install Wien2k_23 but in vain
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Re: [Wien] hf error -monolayer

2023-06-22 Thread Brik Hamida
Dears,

*1) All files you indicated are already generated.:* case.klist_fbz,
case.klist_ibz,
case.kgen_ibz and case.outputkgenhf

*2) For the number of 'nbands' : I set nband_occ +1.*
For my case , I set : 14   ( I also tried with 16 or 17 , the error still).

 Insulator, EF-inconsistency corrected
:GAP (global)   :  0.157470 Ry = 2.142 eV (accurate value if proper k-mesh)
 Bandranges (emin - emax) and occupancy:
:BAN3:   3   -2.835841   -2.824643  2.
:BAN4:   4   -2.833211   -2.824643  2.
:BAN5:   5   -1.280319   -1.145577  2.
:BAN6:   6   -1.185292   -1.129622  2.
:BAN7:   7   -0.668293   -0.611429  2.
:BAN8:   8   -0.605711   -0.438976  2.
:BAN9:   9   -0.544477   -0.438976  2.
:BAN00010:  10   -0.482979   -0.376093  2.
:BAN00011:  11   -0.459595   -0.359116  2.
:BAN00012:  12   -0.367030   -0.320697  2.
:BAN00013:  13   -0.299789   -0.246051  2.
:BAN00014:  14   -0.088581   -0.045169  0.
:BAN00015:  15   -0.075909   -0.042077  0.
:BAN00016:  16   -0.0349310.036604  0.
:BAN00017:  17   -0.0280400.089279  0.
:BAN00018:  180.1483860.303402  0.
Energy to separate low and high energystates:   -0.71829

:NOE  : NUMBER OF ELECTRONS  =  26.000

:FER  : F E R M I - ENERGY(TETRAH.M.)=  -0.2460508540
:GMA  : POTENTIAL AND CHARGE CUT-OFF  12.00 Ry**.5



*3) For case.inhf  is the following :  ( I also tried with alpha equal to
0.2  and increase gmax but error still)*

0.25 alpha
Tscreened (T) or unscreened (F)
0.165lambda
14  nband
6gmax
3lmaxe
3lmaxv
1d-3 tolu


*4)  the content of   hf.error  :  error in hf (only this message is
written in hf.error file) *
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Re: [Wien] hf error -monolayer

2023-06-21 Thread Brik Hamida
I'm sorry I made a typo in the last message .
I mean the command : run_kgenhf_lapw -redklist and not run_kgenhf_lapw
-hf  -redklist
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Re: [Wien] hf error -monolayer

2023-06-21 Thread Brik Hamida
Dear Fabien
Thank you for your reply.
Indeed the two files are generared.
I executed run_kgenhf_lapw -hf  -redklist with  :  k-mesh (eg. 4x4x4) and
commensurate reduced k-mesh (eg. 2x2x2).

*case.klist :*
 1 0 0 0 4  1.0 -7.0  1.5 0
k, div: (  4  4  4)
 2 0 0 1 4  2.0
 3 0 0 2 4  1.0
 4 0 1 0 4  6.0
 5 0 1 1 4 12.0
 6 0 1 2 4  6.0
 7 0 2 0 4  3.0
 8 0 2 1 4  6.0
 9 0 2 2 4  3.0
10 1 1 0 4  6.0
11 1 1 1 4 12.0
12 1 1 2 4  6.0
END

*case.kgen:*
1272  2.60416667E-03   101 1
 4 1 2 4 4 4
 1 2 4 5 4 1
 2 5 5 8 1 4
 4 5 4 1 4 5
 5 4 2 3 5 5
 4 2 3 5 6 4
 2 3 6 6 4 2
 4 4 5 8 2 4
 5 5 8 2 5 5
 6 4 2 5 6 6
 4 3 5 5 6 8
 3 5 6 6 8 4
 4 510 4 4 4
 511 4 4 410
11 4 4 5 510
 8 4 5 511 8
 4 5 710 4 4
 5 711 4 4 5
 810 8 4 5 8
11 4 4 51011
 8 4 7 810 4
 4 7 811 8 4
 71011 4 4 8
1011 8 5 5 6
11 4 5 5 612
 4 5 51011 4
 5 51112 4 5
 6 611 8 5 6
 612 8 5 6 8
11 4 5 6 812
 4 5 6 911 8
 5 6 912 4 5
 61112 4 5 7
 810 8 5 7 8
11 4 5 71011
 8 5 8 911 4
 5 8 912 8 5
 81011 8 5 8
1112 4 5 911
12 4 6 61112
 4 6 8 911 8
 6 8 912 4 6
 81112 8 6 9
1112 4 7 810
10 4 7 81011
 4 7 81111 8
 7101011 4 7
101111 4 8 9
1111 4 8 911
12 4 8 91212
 4 8101011 8
 8101111 8 8
111112 4 811
1212 4 91111
12 8 9111212
 410101011 4
10101111 410
111111 41111
1112 4111112
12 411121212
 0 0 0 0 0 0
 0 0 0 0 0 0
 0 0 0 0 0 0
 0 0 0 0 0 0
 0 0 0 0 0 0
 0 0 0

[Wien] hf error -monolayer

2023-06-21 Thread Brik Hamida
Dear

I have done hf-SFC calculation for BULK semiconductor  and it is well done.
Then , I followed the same hf -calculation steps for MONOLAYER
semiconductor but unfortunately  I have an error in hf ( hf error file) :

 start  (21 جوان, 2023 CET 12:28:26 م) with lapw0 (40/99 to go)

cycle 1 (21 جوان, 2023 CET 12:28:26 م) (40/99 to go)

>   lapw0 -grr  (12:28:26) 6.3u 0.0s 0:06.38 99.8% 0+0k 0+1io 0pf+0w
>   lapw0   (12:28:32) 4.5u 0.0s 0:04.61 100.0% 0+0k 0+2704io 0pf+0w
>   lapw1   (12:28:37) 41.2u 0.5s 0:41.74 100.0% 0+0k 0+72976io 0pf+0w
>   lapw2   (12:29:19) 1.1u 0.0s 0:01.16 100.0% 0+0k 0+3864io 0pf+0w
>   lcore   (12:29:20) 0.0u 0.0s 0:00.05 100.0% 0+0k 0+2984io 0pf+0w
>   hf   -mode1   -redklist (12:29:20) 0.0u 0.0s 0:00.09 88.8% 0+0k 
> 0+24io 0pf+0w
error: command   /home/hmd/wien18/hf hf.def   failed

>   stop error


Please can someone tell me how I can solve  this problem? Thanks in advance
.
Best regards
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[Wien] Temperature

2022-07-05 Thread Brik Hamida
Dear

I Explain my point of view :
Using Wien2k code all calculations are done at 0 kelvin . So there is no
thermal energy able to displace an electron from valence to conduction
band.  Conduction bands levels are therefore empty.if for example the
Wien2k-estimated bandgap  is of 2 eV so it is considered as semiconductor
. so is it  logical to speak of energy conduction level  and wien2k
calculates the density of charges /states in conduction band  namely DOS
and we know that at T=0k the  material is insulator so no electron in
conduction band.

my second question :with respect to semiconductor definition,  it is
conductor at ambient temperature so KT=25 meV . do you think that this
energy it sufficent to displace the electron from VB to CB with Eg =2 eV.?


Best regards
Brik
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[Wien] Temperature

2022-07-04 Thread Brik Hamida
Dear users

With Wien2k  I was calculated the band structure of one material which is a
semiconductor . The DFT calculations in wien2k are carried at T=0 kelvin.
AS  I know there is no semiconductor at 0 kelvin. So How we can explain the
semiconductor nature at 0 kelvin with dft calculation ?

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[Wien] twisted angle

2020-11-11 Thread Brik Hamida
Dear

I already postulated my question but no reply. Please can someone help me.

My question:

I am working on 2D heterostructures . I want to know if the twisted angle
can be done using Wien2k code. If it is possible can someone explain how
and thanks.

Best regards
Brik
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[Wien] twisted angle

2020-11-09 Thread Brik Hamida
Dear

I am working on 2D structures and 2D heterostructures . I want to know if
the twisted angle can be done using Wien2k code. If it is possible can
someone explain how and thanks.

Best regards
Brik
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[Wien] twisted angle

2020-11-09 Thread Brik Hamida
Dear

I am working on 2D structures and 2D heterostructures . I want to know if
the twisted angle can be done using Wien2k code. If it is possible can
someone explain how and thanks.

Best regards
Brik
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[Wien] optimization - 2D materials

2020-10-12 Thread Brik Hamida
Hi

I m working on 2D material ( a=b and the vacuum is along z direction )  Can
you help me how I can optimize the structure?. I think  that is  not the
same steps already used for  the bulk .thanks.

best regards
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[Wien] Alignment band

2020-05-15 Thread Brik Hamida
Dear

Im working on 2D semiconductor. I have calculated its electronic structure
using Wien2k .

Actually , I need to plot the corresponding  alignment band means the band
edge position which are usually named Homo and Lumo.

Please can you help me and tell me how  I can do that.
Thanks in advance .

 Best,
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[Wien] Bonding/antibonding orbital

2017-06-19 Thread Brik Hamida
Dear users

Afer bands structure and PDOS  calculations, How I can know if the orbital
which contributes to form band valence/ conduction maximum is bonding or
antibonding ?
Thanks
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[Wien] questions about Wien2k

2016-11-08 Thread Brik Hamida
Dear


Im using Wien2k code and I have some questions

1) Wien2k code is based on DFT which consideres only the ground state but
in the same time the code calculates the absorption spectrum. is this
spectrum has a physical sense ? it is correct ?


2) the dielectric functions  are calculated versus energy. What means this
energy ? is it the excitation energy ? and what means the static dielectric
constant



Thanks for your reply
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[Wien] negative epsilon 1

2016-01-09 Thread Brik Hamida
Hi
Im working on semiconductor material. I have calculated  the real part of
dielectric function (epsilon1) as function of energy. For high energy , I
found epsilon1 negative !
Please can someone explain me what means this negative values ? I read that
any material havig an negative epsilon1 , it becomes a metal , it is right
??
Thanks in advance
Brik
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[Wien] gap

2015-11-13 Thread Brik Hamida
Hi

Im working on  electronic structure  of monolayer material. I  used GGA and
MBJ approaches and the obtained gap is very small  in comparaison with the
experimental result. In the useeguide of wien2k , the authors note that MBJ
increase the gap of 3D material and not the 2D one.
Please can someone advices me which approach (included in wien2k code)
allows to increase the gap of the monolayer ??
Thanks in advance
Brik
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[Wien] error in LAPW2

2015-10-28 Thread Brik Hamida
Hi

I have calculated  the electronic structure of my compound with GGA
approach . But when I try to calculate it by EVGGA approach I have this
error in LAPW2 :

'L2main' QTL-B.GT.15 Ghost bands  check scf files


What means ? and How I can solve the problem ?

Best
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[Wien] sum rules-TiC

2014-05-27 Thread Brik Hamida
I have calculated the optical properties of TiC. I have just followed all
the steps given in UG. The only difference , I haven't found the TiC.in2c
in order to change TOT to FERMI  but I do it in TiC.in2..I think that is ok
?? no ?

My question is about its sum rules. I found :
 sum rule 1: Int(sigma)dw 4.6253

sum rule 2: Int(eloss.w)dw 0.1719
sum rule 3: Int(eloss/w)dw0.2839


But When I read  Claudia Ambrosch-Drax's paper (Linear optical
properties of solids within the full-potential linearized augmented
planewave method)I found That The first two give an effective number of
electrons contributing to the absorption process as a function of
energy.!!!


So, my calculations are wrong ?? But When I work on another compound I
found That sum rule (1-2) are different . Sum rule 3 is different to =
π/2 !!


Can some one help me Please ? What Can I do

Best Regards
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