Asymmetric impedance in field-annealed Co-based amorphous wires and its bias field dependence

被引：8
|
作者：
Duque, JGS [1 ]
De Araújo, AEP [1 ]
Knobel, A [1 ]
机构：
[1] Univ Estadual Campinas, UNICAMP, IFGW, BR-13083970 Campinas, SP, Brazil
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2006年 / 299卷 / 02期
基金：
巴西圣保罗研究基金会;
关键词：
asymmetric magnetoimpedance; Joule heating; bias field;
D O I：
10.1016/j.jmmm.2005.05.001
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Giant magnetoimpedance (GMI) was measured in Joule heated Co68.18Fe4.32Si12.5B15 amorphous wires. Samples heat treated in open air showed an asymmetric giant magnetoimpedance (AGMI) behaviour. The AGM I profile, measured at selected frequency values and bias circumferential fields, can be related to the exchange bias interaction between the soft magnetic amorphous material and a harder magnetic crystalline phase formed on the surface of the wire. The present data show that AGMI behaviour take place owing to a soft magnetic layer With unidirectional anisotropy that develops in the surface of the wire. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：419 / 424
页数：6
相关论文
共 50 条
  • [41] HIGH-FIELD SUSCEPTIBILITY OF CO-BASED AMORPHOUS FERROMAGNETS
    DEBOER, FR
    KOSSACKI, P
    PUZNIAK, R
    STOBIECKI, T
    SZYMCZAK, H
    ZHONG, XP
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1991, 101 (1-3) : 3 - 5
  • [42] Effect of annealing under torsion stress on the field dependence of the impedance tensor in amorphous wires
    Zhukova, VA
    Chizhik, AB
    Gonzalez, J
    Makhnovskiy, DP
    Panina, LV
    Mapps, DJ
    Zhukov, AP
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2002, 249 (1-2) : 324 - 329
  • [43] Temperature dependence of magnetoimpedance in annealed Co-based ribbons
    Tehranchi, MM
    Ghanaatshoar, M
    Mohseni, SM
    Coisson, M
    Vázquez, M
    JOURNAL OF NON-CRYSTALLINE SOLIDS, 2005, 351 (37-39) : 2983 - 2986
  • [44] The torsional dependence of the magneto-impedance effect in current-annealed Co-rich amorphous wires
    Tejedor, M
    Hernando, B
    Sánchez, ML
    Prida, VM
    Vázquez, M
    JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1998, 31 (23) : 3331 - 3336
  • [45] Giant magnetoresistance in field-annealed Co/Cu multilayer films: Discontinuous multilayers?
    Sablik, MJ
    Dearnaley, G
    Stead, D
    Jensen, PA
    Gutierrez, CJ
    Khater, M
    Dail, R
    Tristan, L
    Medrano, D
    JOURNAL OF MATERIALS SCIENCE LETTERS, 1996, 15 (13) : 1145 - 1148
  • [46] MAGNETIC-PROPERTIES OF CO-BASED AMORPHOUS-ALLOYS ANNEALED WITH MAGNETIC-FIELD TRANSVERSE TO THE RIBBON AXIS
    SAWA, T
    HASHIMOTO, S
    INOMATA, K
    IEEE TRANSACTIONS ON MAGNETICS, 1987, 23 (05) : 3509 - 3511
  • [47] Relaxation of rotational magnetization in annealed Co-based amorphous ribbons
    Yoon, S.S.
    Kim, C.G.
    Kim, H.C.
    Jang, K.J.
    Kim, D.Y.
    Journal of Magnetism and Magnetic Materials, 1999, 196 : 843 - 845
  • [48] Relaxation of rotational magnetization in annealed Co-based amorphous ribbons
    Yoon, SS
    Kim, CG
    Kim, HC
    Jang, KJ
    Kim, DY
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 196 : 843 - 845
  • [49] Predicting Energy Loss and Permeability of Field-Annealed Amorphous and Nanocrystalline Alloys up to 1 GHz
    Ragusa, Carlo Stefano
    Dobak, Samuel
    Beatrice, Cinzia
    Solimene, Luigi
    Magni, Alessandro
    Fiorillo, Fausto
    IEEE ACCESS, 2024, 12 : 136713 - 136726
  • [50] PHENOMENOLOGICAL MODEL FOR MAGNETIZATION, MAGNETOSTRICTION AND DELTA-E EFFECT IN FIELD-ANNEALED AMORPHOUS RIBBONS
    SQUIRE, PT
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1990, 87 (03) : 299 - 310
12345