elastic constant for metal  [SOLVED]

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bouhadda
Posts: 5
Joined: Thu Jan 14, 2010 10:12 am

elastic constant for metal  [SOLVED]

Post by bouhadda » Sun Mar 09, 2014 11:46 am

dear users,
I try to calculate the elastic consatnt for FeTiH (metal), (fetih.in , fetih.out and fetih .log are atteched) but I don't have a good results. looking to my calculation i hav'not a Convergence in my calculation even when I use a very big nstep (5000!) and also a big ecut (a good ecut and ngkpt are 22 ha and 12 12 12) . also I try to use the same input file from the abinit tutorials ( Al : telast_6.in) was also a disaster (no convergence no results) . what do you think ? thank you in advence.
PS: I try also both experimental and optimized position.
Attachments
fetih11.in
(1.63 KiB) Downloaded 362 times
fetih11.out
(693.43 KiB) Downloaded 313 times
fetihelast.out
(9.37 KiB) Downloaded 359 times

ilukacevic
Posts: 271
Joined: Sat Jan 16, 2010 12:05 pm
Location: Dept. of Physics, University J. J. Strossmayer, Osijek, Croatia
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Re: elastic constant for metal

Post by ilukacevic » Tue Mar 11, 2014 8:22 am

Hi!

I see that you use iscf 5 and 3 in DS 1 and 2. Why don't you try with iscf 7 for the first hand? Then we'll see what's happening.

Igor

bouhadda
Posts: 5
Joined: Thu Jan 14, 2010 10:12 am

Re: elastic constant for metal

Post by bouhadda » Mon Mar 17, 2014 8:56 am

Hi Igor,
thank you for response : it works!! thank you very much

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