Thank you sir. I will try that

regards

Narayanan


On Sat, Mar 14, 2026 at 4:43 PM Lorenzo Paulatto <[email protected]>
wrote:

> Hello,
>
> there is a little program called "scan_ibrav.x" in the QE distribution.
> Run it interactiveluy and give it your ibrav=0 structure and it'll find oit
> the correct valeus for ibrav=6 (if it is possible). It will also warn you
> if there is a rotation or a change of axis order involved, which you may
> have to fix by hand.
>
> hth
> On 14/03/2026 09:38, Narayanan Namboodiri P via users wrote:
>
> Dear users,
>
>
>              I am using QE to run my calculation. I ran the calculation
> initially with ibrav = 0 and system converged properly. But for the same
> value, if I used ibrav = 6, as my system is tetragonal the calculation is
> not converging. Can any body suggets what may be the reason for this.
>
> /
> &SYSTEM
>     ibrav=  6,
>     celldm(1) = 7.3510633312,
>     celldm(3) = 2.4481070291,
> Thanking you in advance
>
> with regards
>
> Narayanan.
>
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> --
> Dr. Lorenzo Paulatto
> IR IMPMC - CNRS UMR 7590 / Sorbonne Université / MNHN
> phone: +33 (0)1 442 79822 / telegram: lpaulatto
> people.impmc.fr/lpaulatto - anharmonic.github.io
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>
> _______________________________________________________________________________
> The Quantum ESPRESSO Foundation stands in solidarity with all civilians
> worldwide who are victims of terrorism, military aggression, and
> indiscriminate warfare.
>
> --------------------------------------------------------------------------------
> Quantum ESPRESSO is supported by MaX (www.max-centre.eu)
> users mailing list [email protected]
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_______________________________________________________________________________
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worldwide who are victims of terrorism, military aggression, and indiscriminate 
warfare.
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