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Effect of nanocrystallization on giant magnetoimpedance effect of Fe-based microwires
Affiliation:1. Dpto. Fisica de Materiales, Basque Country University UPV/EHU, San Sebastian, Spain;2. Dpto de Física, Universidad de Oviedo, Oviedo 33007, Spain;3. Dpto. Fisica Aplicada, EUPDS, Basque Country University UPV/EHU, San Sebastian, Spain;4. IKERBASQUE, Basque Foundation for Science, Bilbao 48011, Spain;1. Centre for Infection and Immunity, Health Sciences Building, Queen׳s University Belfast, Belfast BT9 7AE, UK;2. Centre for Experimental Medicine, ICS-A, Queen׳s University Belfast, Belfast BT12 6BA, UK;3. Institute of Biology, Taras Shevchenko Kiev National University, 2 Academician Glushkov Avenue, Kiev 01601, Ukraine;1. Shenzhen Key Laboratory of Electromagnetic Control, Shenzhen University, Shenzhen, Guangdong Province, PR China;2. Department of Electrical Engineering, Hong Kong Polytechnic University, Hong Kong, China;1. Agriculture Ministry Key Laboratory of Healthy Freshwater Aquaculture, Zhejiang Institute of Freshwater Fisheries, Huzhou 313001, China;2. Key Laboratory of Fish Healthy and Nutrition of Zhejiang Province, Zhejiang Institute of Freshwater Fisheries, Huzhou 313001, China;3. Key Laboratory of Genetic Breeding and Aquaculture Biology of Freshwater Fishes, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China;4. Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Yancheng Teachers University, Yancheng 224051, China;1. Laboratorio de Neurofarmacología Marina, Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Campus UNAM Juriquilla, Querétaro 76230, Mexico;2. Laboratorio de Genética Molecular, Instituto Tecnológico de Conkal, Conkal, Yucatán 97345, Mexico;3. Departamento de Estudios para el Desarrollo Sustentable de Zonas Costeras. CUCSUR-Universidad de Guadalajara, San Patricio-Melaque, Jalisco 48980, Mexico;4. Posgrado en Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Nayarit, Mexico;1. Key Laboratory of Colloid & Interface Chemistry of the Education Ministry of China, Shandong University, Jinan 250100, PR China;2. State Key Laboratory of Microbial Technology of China, Shandong University, Jinan 250100, PR China
Abstract:We studied giant magnetoimpedance (GMI) effect and magnetic properties of Fe70.8Cu1Nb3.1Si14.5B10.6 and Fe71.8Cu1Nb3.1Si15B9.1 Finemet microwires. We observed that GMI effect and magnetic softness of glass-coated microwires produced by the Taylor–Ulitovski technique can be tailored either controlling magnetoelastic anisotropy of as-cast FeCuNbSiB microwires, and/or controlling their structure by heat treatment or by changing the fabrication conditions. High GMI effect has been observed in as-prepared Fe-rich and heat treated microwires with nanocrystalline structure.
Keywords:A. Nanostructured intermetallics  B. Magnetic properties  C. Nanocrystals  D. Microstructure  G. Magnetic applications
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