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The domain wall resistance was measured in an FePt wire with perpendicular magnetic anisotropy. By the local heating with pulsed current through the wire, the magnetization in a notch of an FePt wire can be selectively reversed. As a result, two domain walls can be created in the vicinity of the notch. The domain wall resistance in this system is positive. The measured interface resistance per domain wall is 2.6×10−16Ωm2, and is almost independent of temperature.
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Tanigawa et al. (2006) studied this question.
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