Abstract
The influence of an external magnetic field and elastic tensile stresses on the real and imaginary components of the impedance of a magnetically soft amorphous conductor with a low positive magnetostriction constant is studied. The difference is found between the frequencies at which the circular permeabilities of conductor’s parts with different types of magnetic anisotropy do not have a dominant influence on the real and imaginary components of the impedance any longer. It is shown that the sensitivity of the imaginary part of the impedance to a change in the magnetic structure of the conductor exceeds the sensitivity of the real component in a wide frequency interval. The variation of the impedance components under the influence of external actions is analyzed. This analysis may greatly expand the potential of magnetoimpedance spectroscopy, and the detection of the impedance’s imaginary component in magnetically soft and stress-impedance transducers will raise their sensitivity.
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