Is it possible to have total Magnetocrystalline anisotropy energy (MAE) in-plane whereas the individual atomic sites MAE are out-plane?

Dear RG members, I am calculating the MAE for 111 surface Slab of Fe2CoAl by following the examples in Quantum Espresso.I have found all the atomic sites MAE for Fe and Co sites in Al-terminal are...

16 September 2019 1,916 1 View