29 November 2000 Giant magneto-impedance in sandwiched FeSiB/Cu/FeSiB films
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Proceedings Volume 4086, Fourth International Conference on Thin Film Physics and Applications; (2000) https://doi.org/10.1117/12.408309
Event: 4th International Conference on Thin Film Physics and Applications, 2000, Shanghai, China
Abstract
Giant magneto-impedance (GMI) effect has been studied in the sandwiched FeSiB/Cu/FeSiB films in the frequency range of 1 - 40 MHz. With magnetic field, Ha and AC current applied along the longitudinal direction, the field dependence of the GMI ratio shows that the GMI ratio increase with magnetic field, reaching a positive maximum value at a certain field, and then gradually decreases to the negative GMI ratio. At a frequency of 5 MHz the positive maximum GMI ratio is 1.6% at Ha equals 15Oe, and is smaller than the negative GMI ratio, -7.4% at Ha equals 50Oe. With a transverse field applied, at a frequency of 5 MHz a large negative GMI ratio, -12.2% and -15.4% are obtained for Ha equals 70Oe, respectively. The larger negative GMI ratios at relatively large fields may be associated with the dispersion of easy axis and the related domain structures.
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Yong Zhou, Chunsheng Yang, Jinqiang Yu, Xiaolin Zhao, Haiping Mao, "Giant magneto-impedance in sandwiched FeSiB/Cu/FeSiB films", Proc. SPIE 4086, Fourth International Conference on Thin Film Physics and Applications, (29 November 2000); doi: 10.1117/12.408309; https://doi.org/10.1117/12.408309
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