Fig. 3: Fabrication strategies for flexible magnetic films.

a Schematic illustration of Co₄₀Fe₄₀B₂₀ film deposition on convex/concave molds to induce tensile/compressive stresses. Reproduced with permission³². Copyright 2014, AIP Publishing. b Schematic diagrams for applying compressive stress, no stress, and tensile stress to the Co/Pt multilayers. Reproduced with permission²². Copyright 2023, American Chemical Society. c Fabrication process of stretchable magnetic films with random wrinkling and periodic fracture of the spin valve stack. Reproduced with permission¹⁸. Copyright 2012, Wiley-VCH. d Atomic interface of quasi-van der Waals epitaxial growth. Reproduced with permission³⁵. Copyright 2017, Elsevier B.V. e Cross sectional TEM image of CoFe₂O₄ film grown on mica via van der Waals epitaxy. Reproduced with permission³⁶. Copyright 2017, American Chemical Society.