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Magnetoimpedance (MI) sensor is commercially applied for compasses in mobile phones [1], and its sensitivity has been enhanced to be applicable to biomedical research field and nondestructive testing [2].
We investigated the effects of controlling the distribution of the demagnetizing field on the impedance profiles of stepped giant magnetoimpedance elements. Elements with an ellipsoidal shape were adopted to improve the properties in discontinuous impedance jumps, as the demagnetizing field is expected to be uniform in an ellipsoid. The impedance jumps in the ellipsoidal elements became sharper and...
Magnetoimpedance (MI) element is used for compasses in mobile phones [1], and its application expands to various industrial fields such as biomedical field and nondestructive testing because of its higher sensitivity [2]. On the other hand, MI element with a stepped impedance properties was obtained from the rectangular amorphous film with a uniaxial easy axis at an inclined angle relative to the...
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