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3D modeling of magnetoimpedance effect
Posted 23 mar 2023, 13:27 GMT-4 Electromagnetics, Equation-Based Modeling, Physics Interfaces Version 5.6 0 Replies
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Dear sir/madam
I would like to simulate thin film MI sensor. Here I tried to use the mef physics from the AC/DC module but have not been successful. I want to see the impedance change in a three layered device (ferromag material/metal/ferromag) as a function of an extrenal magnetic field. The inputs are: - Hext (external magnetic field) is applied parallel to an external AC current through the device with a frequency of 10MHz. The current is accoplished by putting an electric potential of 5V accross the device. - A permeability table is imported where the permeability has a real and an imaginary part, and is a function of Hext. The permeability is used by applying an interpolation funtion in the ferromagnetic material under basic settings.
However, now I don't get any change in impedance.
Could you please give me a direction on how to perfrom the simulations correctly. Any details would be highly helpful. I can also add here a copy of the comsol file if that is needed.
Hello Brahim elMansouri
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