| Popis: |
The discovery of the magnetoimpedance (MI) effect in 1994 had a strong impact on the development of micromagnetic sensors operating at nano-Tesla range. In certain soft magnetic materials, such as amorphous microwires, the impedance change (MI ratio) is in the range of 50–100% in the MHz frequency band for external magnetic fields of few Oe. For further miniaturization, special thin-film structures have been proposed. In this article, we consider the principal advantages of MI in magnetic/metallic multilayered materials and their applications to magnetic sensing technology. |
