Nanostructure-induced 1-ordering of twinned single-crystals in CoPt ferromagnetic nanowires.

1-ordered ferromagnetic nanowires with large coercivity are essential for realizing next-generation spintronic devices. Ferromagnetic nanowires have been commonly fabricated by first 1-ordering of initially disordered ferromagnetic films by annealing and then etching them into nanowire structures using lithography. If the 1-ordered nanowires can be fabricated using only lithography and subsequent annealing, the etching process can be omitted, which leads to an improvement in the fabrication process for spintronic devices.