Seeking help about Material file for noncollinear AFM e.g. Mn3XN (X= Pt,Ga,Sn,Ir)

[Arpan Saha]

Dear all,

I am new here. I am trying to simulate noncollinear AFM/FM bilayer for exchange bias kind of study. Now I can make AFM material file for general collinear AFM by two sublattice method but is it possible in vampire to make a material file which actually mimics the canted Gamma-4g antiperovskite structure of a noncollinear AFM? If yes, please explain how can it be done and how the ucf file will look like in that case.

Anticipating help from the community.

Regards,
Arpan

[Richard Evans]

Hi Arpan,

Yes - the perovskite structure is built into the develop branch of vampire (create:crystal-structure = perovskite), and here are some sample inputs for non-collinear IrMn and slides from the recent vampire workshop in Thailand (with just the base FCC magnetic structure).

All the best,

Richard

[Arpan Saha]

Dear Richard,

Thank you so much for your kind response and these valuable resources you provided. I will try to simulate my own material with the help of this and if I face any further difficulties during the simulation hopefully I will get help from you and this community as well.

regards,
Arpan