The magnetoimpedance (MI) effect on the text Fe-based ribbon with different sizes of triangle transverse structures has been investigated. The initial susceptibility ( $\chi _{\mathbf {i}}$ ) and the MI ratio along the width (T-MI) and length (L-MI) directions as a function of the triangle height ( ${h}$ ) were measured and discussed. The text T-MI and $\chi _{\mathbf {i}}$ along the width direction increase with the increase in ${h}$ , while the text L-MI and $\chi _{\mathbf {i}}$ along the length direction decrease with the increase in ${h}$ . These behaviors are mainly attributed to the variation of the effective shape anisotropy ( ${K} _{\mathbf {eff}}$ ) and the corresponding magnetization process, in which ${K} _{\mathbf {eff}}$ mainly originates from the competition of demagnetization effects along the width and length directions. The triangle structures changed the demagnetization fields along the two directions. Thus, the effective shape anisotropy, permeability, and MI were varied. This article also provides an idea to fabricate the MI sensor by introducing transverse shape anisotropy.

中文翻译：

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Fe基非晶带中横向形状各向异性修饰的巨磁阻抗效应

研究了具有不同尺寸三角形横向结构的文本铁基带的磁阻抗（MI）效应。初始磁化率（ $\chi _{\mathbf {i}}$ ) 和沿宽度 (T-MI) 和长度 (L-MI) 方向的 MI 比率作为三角形高度的函数 ( ${h}$ ) 进行了测量和讨论。文本 T-MI 和 $\chi _{\mathbf {i}}$ 沿宽度方向随着增加 ${h}$ , 而文本 L-MI 和 $\chi _{\mathbf {i}}$ 随着长度方向的增加而减少 ${h}$ . 这些行为主要归因于有效形状各向异性的变化（ ${K} _{\mathbf {eff}}$ ) 和相应的磁化过程，其中 ${K} _{\mathbf {eff}}$ 主要源于沿宽度和长度方向的退磁效应的竞争。三角形结构沿两个方向改变了退磁场。因此，有效形状各向异性、渗透率和 MI 是不同的。本文还提供了一种通过引入横向形状各向异性来制造 MI 传感器的想法。