Evolution of ferromagnetic stripes in FePt films at low temperature

C. P. QUINTEROS; S. DAMERIO; D. GOIJMAN; B. NOHEDA; J. MILANO

Bariloche

Simposio; SPIN Argentina; 2022

Patterns of ferroic domains and domain walls are being intensively studied to implement new logicschemes. Any technological application of such objects depends on a detailed understanding ofthem. This study analyses patterns of ferromagnetic stripes on equiatomic FePt thin lms at lowtemperatures. Since FePt is known to develop a transition from in-plane homogeneous magnetiza-tion to stripe domains upon varying its thickness, multiple samples are studied demonstrating thewell-established reduction upon thickness decrease and a non-trivial dependence on temperature.Moreover, the room-temperature uniform distribution of the pattern evolves into a distorted oneupon temperature cycling. Finally, dissimilar stripe patterns are obtained upon reducing and in-creasing temperature indicating the states are dependent on the history of applied stimuli ratherthan the parametric conditions.