Temperature Dependence of the ΔE-Effect for Amorphous Metal Alloy Ribbons with Different Orientations of the Easy Magnetization Axis

Gavrilyuk, A.; Semenov, A. L.; Gafarov, A. R.; Gavrilyuk, A. V.; Kovaleva, N. P.; Zubritskii, S. M.; Gavrilyuk, B. V.; Morozova, N. V.

doi:10.1007/s11182-016-0813-9

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2019

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“…The ∆ E effect can be defined as a variation of Young's modulus as a function of the magnetic field, and has been intensively studied in amorphous ribbons [1][2][3][4], wires [5][6][7], and films [8], since changes in modulus or resonant frequency have many technological applications [9][10][11][12][13]. The ∆ E effect in amorphous alloys is much larger than that in crystalline materials.…”

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confidence: 99%

Asymmetric ΔE Effect and its Use as a Magnetic Field Sensor

2019

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The ∆E effect was studied using Fe77B16Si5Cr2 amorphous ribbon, and asymmetry in the ∆E curves was created using micro magnets placed on the surface of the ribbon. Asymmetry was also observed in the vibration amplitude versus the magnetic field, and magnetization loops of amorphous ribbons with micro magnets were observed. The results show that the asymmetries in the ∆E curves and magnetisation loops are in agreement with each other. A linear change in vibration amplitude as a function of the applied magnetic field in the ±100 A/m region was observed, which is important for sensor applications.

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