Engineering of domain wall dynamics in amorphous microwires by annealing

被引：17
作者：
Zhukov, A. [1 ,2 ,3 ]
Blanco, J. M. [2 ]
Ipatov, M. [1 ,2 ]
Talaat, A. [1 ,2 ]
Zhukova, V. [1 ,2 ]
机构：
[1] Univ Basque Country, Fac Quim, Dept Fis Mat, San Sebastian 20009, Spain
[2] Univ Basque Country, EUPDS, Dept Fis Aplicada, San Sebastian 20018, Spain
[3] Ikerbasque, Basque Fdn Sci, E-48011 Bilbao, Spain
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 707卷
关键词：
Glass-coated microwires; Taylor-Ulitvosky technique; Annealing; Stress relaxation; Crystallization; Domain wall propagation; GIANT MAGNETOIMPEDANCE; MAGNETIC-PROPERTIES; MANIPULATION; DEPENDENCE; BEHAVIOR; FIELD; WIRES;
D O I：
10.1016/j.jallcom.2016.09.072
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Domain wall (DW) propagation and magnetic properties in as-prepared and annealed Fe-and Fe-Ni-rich microwires are experimentally studied. Observed DW dynamics is discussed considering the effect of magnetoelastic anisotropy, internal stresses relaxation after annealing and domain wall stabilization owing to pair ordering. Additionally, modification of the magnetostriction coefficient related to stress relaxation and formation of nanocrystalline structure after annealing are considered. Annealing allows considerable improvement of DW velocity in Fe-rich and Fe-Ni based (low Ni content) microwires. In Fe-Ni-based microwires the DW velocity increasing is less appreciated. Moreover coercivity increasing after annealing of Fe-Ni based microwires is observed. Consequently, annealing is the effective method for engineering of the DW dynamics in glass-coated microwires. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：35 / 40
页数：6
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