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The evolution of hysteresis and magnetoresistive properties of exchange-coupled Fe20Ni80/Tb–Co bilayers with modified interface was investigated in the temperature range from 79 to 450 K. Exchange bias field was shown to decrease monotonously with increasing temperature, demonstrating a very similar behavior for unmodified films and samples with ultrathin Ti spacer or selectively annealed permalloy...
Thin magnetic films of exchange coupled polycrystalline Fe20Ni80 and amorphous ferrimagnetic Tb-Co layers are considered as a promising sensitive medium for magnetic field sensors. In this case permalloy layer is used as a material with large effect of anisotropic magnetoresistance (AMR). Ferrimagnetic Tb-Co layer is exchange coupled to the Fe20Ni80 layer and used as a source of unidirectional anisotropy...
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