Surface induced superstructure transformation in L10FePt by Monte Carlo simulations implemented with Analytic Bond-Order Potentials

Stability of the L10 superstructure at the (001)-oriented free surface of FePt modelled with Analytic Bond Order Potentials (ABOP) was probed by means of Monte Carlo simulations. Among the three L10 variants the c-one with (001) monoatomic planes appeared unstable. The presented results confirm the previous ones yielded by a simple Ising-Kawasaki model, and elucidate experimental findings related to FePt thin layers and nanocrystal systems.