By Yuki Shiomi
This ebook provides an research of the anomalous and topological corridor results in a few itinerant ferromagnets and helimagnets via measurements of corridor results pushed by way of electric or warmth present. New clarifications are supplied for spin-dependent corridor results triggered by way of the Berry section, skew scattering, and scalar spin chirality.
The writer finds the scattering-free nature of the Berry-phase-induced anomalous corridor present by means of engaging in the 1st comparative examine of electric and thermal corridor results. The impurity-element dependence of the anomalous corridor impression because of skew scattering is systematically investigated within the low-resistivity zone for Fe. new examples exhibiting a topological corridor impact are present in helimagnets, during which nonzero scalar spin chirality arises from the modulation of spin constitution via Dzyaloshinsky–Moriya (DM) interplay. any such DM-interaction-mediated topological corridor impact is a brand new form of topological corridor impact. additionally the temperature dependence of topological corridor phrases within the thermal corridor influence and Nernst–Ettingshausen influence is located to be completely different from that during corridor effect.
These effects can be valuable for functions of spin present to units with low strength consumption.
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