Low Field Magnetic Anisotropy in Metglas 2605 CO Ribbons

To investigate the magnetic anisotropy, low field magnetization measurements have been carried out on various samples of magnetically annealed Metglas 2605 CO. The as-fabricated material exhibits a magnetic anisotropy with the easy axis along the ribbon length. By using the magnetic annealing treatm...

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Bibliographic Details
Published in:Journal of applied physics 1984-11, Vol.57 (8-IIA), p.3511-3513
Main Authors: Hayes, G H, Hines, W A, Yang, D P, Budnick, J I
Format: Article
Language:English
Online Access:Get full text
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Summary:To investigate the magnetic anisotropy, low field magnetization measurements have been carried out on various samples of magnetically annealed Metglas 2605 CO. The as-fabricated material exhibits a magnetic anisotropy with the easy axis along the ribbon length. By using the magnetic annealing treatment which yields an enhanced value for the magnetomechanical coupling factor, a magnetic anisotropy is induced with the easy axis in the plane of the ribbon and perpendicular to the length. A value of K = 4.3 x 10 exp 3 erg/cm exp 3 is calculated for the induced anisotropy energy constant at room temp. Using a model based on simple domain rotation, a value of lambda sub s = 25 x 10 exp --6 is estimated for the corresponding saturation magnetostriction. The anisotropy increases 37% when the temp. is reudced to 77K. Values are presented for the saturation magnetization, domain magnetization, coercive field, and initial permeability. 11 ref.--AA
ISSN:0021-8979