Magnetoimpedance (MI) and hysteresis loops were studied in electroplated Ni-79.1 Fe-20.9/Cu, Ni75.64Fe24.26Ru0.10/Cu, Ni79.51Fe20.31Ru0.18/Cu and Ni75.99Fe23.66Ru0.34/Cu wires. Scanning electron micrographs showed that crack-free electroplated wires were obtained with a smooth surface. The average grain size varied between 3 and 10 mu m for all samples. It was found that circumferential anisotropy was induced in all samples during the electroplating process. The maximum MI response was 459 % at a frequency of 90 kHz, 361 % at 110 kHz, 157 % at 100 kHz and 114 % at 340 kHz for Ni79.1Fe20.9/Cu, Ni75.64Fe24.26Ru0.10/Cu, Ni79.51Fe20.31Ru0.18/Cu and Ni75.99Fe23.66Ru0.34/Cu wires, respectively.
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Bhabha Atom Res Ctr, Electromagnet Applicat & Instrumentat Div, Trombay 400085, Maharashtra, IndiaIndian Inst Informat Technol Design & Mfg, Nat Sci, Jabalpur 482005, Madhya Pradesh, India
Singh, Kumud
Srikanti, Kavita
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Int Adv Res Ctr Powder Met & New Mat, Chennai 600113, Tamil Nadu, IndiaIndian Inst Informat Technol Design & Mfg, Nat Sci, Jabalpur 482005, Madhya Pradesh, India
Srikanti, Kavita
Gopalan, R.
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Int Adv Res Ctr Powder Met & New Mat, Chennai 600113, Tamil Nadu, India
Indian Inst Technol, Dept Met & Mat Engn, Chennai 600036, Tamil Nadu, IndiaIndian Inst Informat Technol Design & Mfg, Nat Sci, Jabalpur 482005, Madhya Pradesh, India
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Walailak Univ, Magnet Lab, Mol Technol Res Unit, Sch Sci, Nakon Si Thammarat 80161, ThailandWalailak Univ, Magnet Lab, Mol Technol Res Unit, Sch Sci, Nakon Si Thammarat 80161, Thailand
Sirisathitkul, C.
Jantaratana, P.
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Kasetsart Univ, Elect & Magnetism Properties Res Lab, Dept Phys, Fac Sci, Bangkok 10900, ThailandWalailak Univ, Magnet Lab, Mol Technol Res Unit, Sch Sci, Nakon Si Thammarat 80161, Thailand