The fundamental region of FCC system

[M-Eddahbi]

He Ralf,

I projected samples axes into the fundamental region of an FCC system and I get the figure in view.
The upper corner of the triangle must be the conjugate plane (-111) (or direction) instead of (1-1-1).

Is it true?

Thank you in advance
Mohamed

[ralfHielscher]

Hi Mohamed,

to me this appears fine. Why do you think that this is wrong?

Ralf.

[M-Eddahbi]

Hi Ralf,
Thank you for the answer.
The notation [1-1-1] is wrong. The correct one is [-111] (See the stereographic projection in view)

treographic projection of an FCC system reference).

[bjoerneske]

This is fine. I think you are overlooking a minus on top of the 00-1, hidden under the big symbol? Then it is [00-1], [0-1-1], [1-1-1] , as in the figure tor. 11. feb. 2021, 19:34 skrev Eddahbi, Mohamed OuLahcen < [email protected]>:

…

Hi Ralf, Thank you for the answer. The notation [1-1-1] is wrong. The correct one is [-111] (See the stereographic projection in view) [image: Proyeccion1] <https://user-images.githubusercontent.com/75380911/107681907-f91d9f00-6c9f-11eb-9436-57848e5c7e14.jpg> treographic projection of an FCC system reference). — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#764 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACXIUNLUDPQMJNOD5VKNRI3S6QPLZANCNFSM4XNLCMTQ> .

[M-Eddahbi]

Thank you Bjoernesk. But in this case it must be the (10-1) plane instead of (0-1-1)

. (See the attached the figure)
The correct fundamental region in my case is (001), (011), (-111).