Correlation of Crystalline Structure with Magnetic and Transport Properties of Glass-Coated Microwires

Crystals

Juan Maria Blanco¹  Ahmed Talaat²  Valentina Zhukova²  Arcady Zhukov²  Mihail Ipatov²  Joan Josep Suñol³  Blanca Hernando⁴  Lorena Gonzalez-Legarreta⁴ 

[1] Departamento de Física Aplicada, Escuela Universitaria Politécnica de Donostia-San Sebastián, Universidad del País Vasco/Euskal Herriko Universitatea, 20018 San Sebastian, Spain;Departamento de Física de Materiales, Facultad de Químicas, Universidad del País Vasco/Euskal Herriko Unibersitatea, 20018 San Sebastian, Spain;Departamento de Física, Universidad de Girona, 17004 Girona, Spain;Departamento de Física, Universidad de Oviedo, Calle San Francisco, 1, 33003 Oviedo, Asturias, Spain;

关键词: magnetic microwires;    nanocrystalline materials;    giant magneto-impedance effect;    giant magnetoresistance effect;    Taylor–Ulitvosky technique;    magnetostriction;    annealing;    Heusler alloys;   

DOI  :  10.3390/cryst7020041

来源: DOAJ

【 摘 要 】

We overviewed the correlation between the structure, magnetic and transport properties of magnetic microwires prepared by the Taylor-Ulitovsky method involving rapid quenching from the melt and drawing of the composite (metallic core, glass coated) wire. We showed that this method can be useful for the preparation of different families of magnetic microwires: soft magnetic microwires displaying Giant magnetoimpedance (GMI) effect, semi-hard magnetic microwires, microwires with granular structure exhibiting Giant Magnetoresistance (GMR) effect and Heusler-type microwires. Magnetic and transport properties of magnetic microwires depend on the chemical composition of metallic nucleus and on the structural features (grain size, precipitating phases) of prepared microwires. In all families of crystalline microwires, their structure, magnetic and transport properties are affected by internal stresses induced by the glass coating, depending on the quenching rate. Therefore, properties of glass-coated microwires are considerably different from conventional bulk crystalline alloys.

【 授权许可】

Unknown