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首页> 外文期刊>Physica, B. Condensed Matter >Very large magneto-impedance and its scaling behavior in amorphous Fe73.5Nb3CU1Si13.5B9 ribbon
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Very large magneto-impedance and its scaling behavior in amorphous Fe73.5Nb3CU1Si13.5B9 ribbon

机译：非晶Fe73.5Nb3CU1Si13.5B9带中的超大磁阻及其缩放行为

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Magneto-impedance (MI) effects have been observed for an amorphous Fe73.5Nb3CU1Si13.5B9 ribbon which has been excited by an a.c. magnetic field parallel to the length of the ribbon and by measuring the induced voltage across an external coil. Maximum relative change in MI as large as -99% was observed in the as-cast state of the ribbon at frequencies upto 1 MHz and d.c. fields H similar to 55 Oe. The relative change in MI, delta Z = [Z(H) - Z(0)]/Z(0), when plotted against scaled field H/H-1/2 was found to be nearly frequency independent; H-1/2 is the field in which delta Z reduced to half its maximum. A phenomenological formula for MI, Z (H), based on Pade approximant has been proposed to describe the scaled behavior of delta Z in a ferromagnetic material. (c) 2007 Elsevier B.V. All rights reserved.
机译：已观察到无定形Fe73.5Nb3CU1Si13.5B9带的磁阻抗（MI）效应，该带已被a.c.平行于碳带长度的磁场，并通过测量跨外部线圈的感应电压来实现。在高达1 MHz和d.c的频率下，在色带的铸态下，观察到MI的最大相对变化高达-99％。字段H类似于55 Oe。当针对比例场H / H-1 / 2绘制时，MI的相对变化量Z = [Z（H）-Z（0）] / Z（0）几乎与频率无关; H-1 / 2是增量Z减小到最大值一半的区域。已经提出了基于帕德近似值的MI，Z（H）的现象学公式来描述铁磁性材料中增量Z的缩放行为。 （c）2007 Elsevier B.V.保留所有权利。

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