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Angular Dependence of Low-Frequency Noise in Al$_{2}$O$_{3}$-Based Magnetic Tunnel Junction Sensors With Conetic Alloy
2012
IEEE transactions on magnetics
We demonstrated the noise performances of Al2O3-based magnetic tunnel junction sensors (MTJs) in the low-frequency regimes. Conetic alloy Ni77Fe14Cu5Mo4 was deposited as both the MTJ pinned layer and free layer because of its superb magnetically soft properties. A rotating magnetic field was employed to investigate the angular dependence of the MTJ low-frequency noise. Hooge parameter was applied for parameterizing the low-frequency noise. The measurement results demonstrate that the Hooge
doi:10.1109/tmag.2012.2196688
fatcat:zowej2fn6rgitnp3k6fsqfi4hu