Negative Domain Wall Resistance in Ferromagnets

Details Negative Domain Wall Resistance in Ferromagnets Negative Domain Wall Resistance in Ferromagnets

1999-10-07

arxiv.org/abs/cond-mat/9910100v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 2 figures, accepted Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.83.4401

The electrical resistance of a diffusive ferromagnet with magnetic domain walls is studied theoretically, taking into account the spatial dependence of the magnetization. The semiclassical domain wall resistance is found to be either negative or positive depending on the difference between the spin-dependent scattering life-times. The predictions can be tested experimentally by transport studies in doped ferromagnets.

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