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Investigation of Crossfield Effect in AMR Sensors

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Abstract:

We measured the effect of crossfield Hx on the output voltage of AMR sensor. This effect can seriously degrade the sensor performance, causing compass errors as high as 1 degree. We show that Hx can significantly affect the magnetization and cause hysteresis when it reaches hundreds of A/m. For lower field region we observe disagreement with the commonly accepted theoretical model.

Keywords: AMR; CROSSFIELD EFFECT; EXPERIMENTAL VERIFICATION; MODEL

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/sl.2009.1079

Publication date: June 1, 2009

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