Abstract
Amorphous microwires, obtained by the glass-coated melt-spinning method having diameters in the range of micrometers, can exhibit perfectly square (single and large Barkhausen jump) or quasi-anhysteretic hysteresis loops, depending on the easy magnetization direction determined by the intrinsic magnetoelastic anisotropy. The thermoelastic internal stressed frozen-in during the fabrication that model the domain structure are here calculated by considering the classical theory of elasticity. A complex stress distribution is obtained having magnitude of 103 MPa. Circular stresses turn out to be predominant, which arises from the composite nature of the microwire (metallic nucleus and insulating glass coating having different mechanical and thermal properties).
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Velázquez, J., Vázquez, M. & Zhukov, A.P. Magnetoelastic anisotropy distribution in glass-coated microwires. Journal of Materials Research 11, 2499–2505 (1996). https://doi.org/10.1557/JMR.1996.0315
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DOI: https://doi.org/10.1557/JMR.1996.0315