Dear R. M. Emirov

It appears that the crystal structure of the pure sample is a BiFeO3 and you doped 20% of samarium in the Bi site so that the atomic position of is the same that of the Bi, please find CIF with R 3 c and R -3 m space group and atomic positions jpg files the following attachment

Regards

Dear M. S. Alkathy .

We doped samarium (Sm) BFO from 0% to 20%. And at 20% there is a structural transition from R3c to Pnma. As shown in the attached files . But my base does not contain a Pnma structure.

Article Evolution of structural transition, grain growth inhibition ...

Dear R. M. Emirov

Here CIF BiFeO3 and Bi0.8Sm0.2FeО3

Crystal system: Orthorhombic

Space-group Pnma (#62)

Best regards!

Dear Emirov

you can get CIF file from this site

http://crystallography.net/cod/

Dear Maximiliano Jesús Moreno Zapata , thank you very much.

Dear Himani Bhoi , this phase is not in the COD database.

Dear Maximiliano Jesús Moreno Zapata , thank you for the cards that you sent me, they helped me.

If it doesn't bother you, I need another card.

Bi0.85Sm0.15FeO3 Pbam

Thanks.