Magnetoimpedance effect of current-annealed CoNiFe/Cu microtubes

ATALAY F., KAYA H., ATALAY S.

PHYSICA B-CONDENSED MATTER, cilt.403, sa.17, ss.2917-2923, 2008 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 403 Sayı: 17
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1016/j.physb.2008.02.034
  • Dergi Adı: PHYSICA B-CONDENSED MATTER
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2917-2923
  • İnönü Üniversitesi Adresli: Evet

Özet

A cobalt/nickel/iron (CoNiFe) magnetic layer was electrodeposited on a 50-mu m-diameter non-magnetic Cu wire in a sulphate bath using a constant voltage. Electrodeposited CoNiFe composite wires were submitted to current annealing at 540 mA. It was found that annealing time less than 1 min removes internal stresses produced during fabrication and that annealing times longer than 5 min induce circumferential anisotropy. Non-annealed sample showed a magnetoimpedance (MI) ratio of 412%. A maximum MI ratio of 583% was obtained after I min of current annealing. (C) 2008 Elsevier B.V. All rights reserved.