SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2015, Vol. 23 ›› Issue (7): 1231-1235.DOI: 10.1016/j.cjche.2014.09.056

• 材料与产品工程 • 上一篇    下一篇

Effect of sub-layer thickness on magnetic and giant magnetoresistance properties of Ni-Fe/Cu/Co/Cu multilayered nanowire arrays

Hongzhi Wang, Bo Huang, Huaquan Deng, Haochen Li, Weiguo Zhang, Suwei Yao   

  1. Sugiyama Laboratory of Surface Technology, School of Chemical Engineering, Tianjin University, Tianjin 300072, China
  • 收稿日期:2014-04-30 修回日期:2014-09-16 出版日期:2015-07-28 发布日期:2015-08-21
  • 通讯作者: Weiguo Zhang
  • 基金资助:

    Supported by the Natural Science Foundation of Tianjin, China (08JCZDJC17400).

Effect of sub-layer thickness on magnetic and giant magnetoresistance properties of Ni-Fe/Cu/Co/Cu multilayered nanowire arrays

Hongzhi Wang, Bo Huang, Huaquan Deng, Haochen Li, Weiguo Zhang, Suwei Yao   

  1. Sugiyama Laboratory of Surface Technology, School of Chemical Engineering, Tianjin University, Tianjin 300072, China
  • Received:2014-04-30 Revised:2014-09-16 Online:2015-07-28 Published:2015-08-21
  • Contact: Weiguo Zhang
  • Supported by:

    Supported by the Natural Science Foundation of Tianjin, China (08JCZDJC17400).

摘要: Ni-Fe/Cu/Co/Cu multilayered nanowire arrays were electrodeposited into anodic aluminum oxide template by using dual-bath method at room temperature. Scanning electron microscopy and transmission electron microscopy were used to characterize the morphology and structure of the multilayered nanowire arrays. Vibrating sample magnetometer and physical property measurement system were used to measure their magnetic and giant magnetoresistance (GMR) properties. The effect of sub-layer thickness on the magnetic and GMR properties was investigated. The results indicate that magnetic properties of electrodeposited nanowires are not affected obviously by Cu layer thickness, while magnetic layers (Ni-Fe and Co layers) have significant influence. In addition, GMR ratio presents an oscillatory behavior as Cu layer thickness changes. The magnetic and GMR properties of the multilayered nanowire arrays are optimum at room temperature for the material structure of Ni-Fe (25 nm)/Cu (15 nm)/Co (25 nm)/Cu (15 nm) with 30 deposition cycles.

关键词: Electrochemistry, Ni-Fe/Cu/Co/Cu multilayered nanowires, Sub-layer thickness, Magnetic property, Giant magnetoresistance

Abstract: Ni-Fe/Cu/Co/Cu multilayered nanowire arrays were electrodeposited into anodic aluminum oxide template by using dual-bath method at room temperature. Scanning electron microscopy and transmission electron microscopy were used to characterize the morphology and structure of the multilayered nanowire arrays. Vibrating sample magnetometer and physical property measurement system were used to measure their magnetic and giant magnetoresistance (GMR) properties. The effect of sub-layer thickness on the magnetic and GMR properties was investigated. The results indicate that magnetic properties of electrodeposited nanowires are not affected obviously by Cu layer thickness, while magnetic layers (Ni-Fe and Co layers) have significant influence. In addition, GMR ratio presents an oscillatory behavior as Cu layer thickness changes. The magnetic and GMR properties of the multilayered nanowire arrays are optimum at room temperature for the material structure of Ni-Fe (25 nm)/Cu (15 nm)/Co (25 nm)/Cu (15 nm) with 30 deposition cycles.

Key words: Electrochemistry, Ni-Fe/Cu/Co/Cu multilayered nanowires, Sub-layer thickness, Magnetic property, Giant magnetoresistance