By Yuki Shiomi
This booklet offers an research of the anomalous and topological corridor results in a few itinerant ferromagnets and helimagnets by way of measurements of corridor results pushed through electric or warmth present. New clarifications are supplied for spin-dependent corridor results brought on by means of the Berry part, skew scattering, and scalar spin chirality.
The writer unearths the scattering-free nature of the Berry-phase-induced anomalous corridor present via undertaking the 1st comparative research of electric and thermal corridor results. The impurity-element dependence of the anomalous corridor impact brought on by skew scattering is systematically investigated within the low-resistivity area for Fe. new examples displaying a topological corridor impression are present in helimagnets, during which nonzero scalar spin chirality arises from the modulation of spin constitution via Dzyaloshinsky–Moriya (DM) interplay. one of these DM-interaction-mediated topological corridor influence is a brand new kind of topological corridor impression. additionally the temperature dependence of topological corridor phrases within the thermal corridor impact and Nernst–Ettingshausen impression is located to be different from that during corridor effect.
These effects can be worthy for purposes of spin present to units with low strength consumption.
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Anomalous and Topological Hall Effects in Itinerant Magnets (Springer Theses) by Yuki Shiomi