Coil-less fluxgate effect in CoNiFe/Cu wire electrodeposited under torsion

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Atıf İçin Kopyala

ATALAY S., YAGMUR V., ATALAY F., BAYRİ N.

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, cilt.323, sa.22, ss.2818-2822, 2011 (SCI-Expanded)

• Yayın Türü: Makale / Tam Makale
• Cilt numarası: 323 Sayı: 22
• Basım Tarihi: 2011
• Doi Numarası: 10.1016/j.jmmm.2011.06.023
• Dergi Adı: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
• Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Sayfa Sayıları: ss.2818-2822
• İnönü Üniversitesi Adresli: Evet

Özet

Co19Ni49.6Fe31.4 layer was electrodeposited onto a twisted Cu wire and helical anisotropy was induced in the magnetic Co19Ni49.6Fe31.4 shell. The magnetic and coil-less fluxgate (CF) properties are presented. The Co19Ni49.6Fe31.4/Cu wire, produced at zero torsional strain, shows a CF output of nearly zero. The samples produced under torsional strains of 29.5 pi and 59 pi rad/m show a linear change in CF output in the low-frequency range. At higher frequencies the CF output shows two linear ranges. A maximum sensitivity of 150V/T is observed at 20 kHz driving-current frequency and 67 mA driving current for a wire produced under 59 pi rad/m torsional strain. It is also found that the slope of the CF curve depends on the direction of induced anisotropy. (C) 2011 Elsevier B.V. All rights reserved.