Laser assisted rapid local crystallization in amorphous PrDyFeCoB microwires
2021
Abstract Magnetically modulated PrDyFeCoB microwires containing periodical local magnetic labels of ~ 10 μm length are imprinted by single 120 ns laser impulse. Initially amorphous microwires is locally transformed by laser irradiation to nanocrystalline (PrDy)2(FeCo)14B1, and (PrDy)1(FeCo)2, (PrDy)1(FeCo)4B1 magnetic phases, possessing enhanced magnetic anisotropy. Alternating magnetic patterns imprinted by laser irradiation have magnetization component perpendicular to the microwire main axis. Fast imprinting of the magnetic microlabels allows one to design programmable microstructures.
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