Anomalous and Topological Hall Effects in Itinerant Magnets - download pdf or read online

By Yuki Shiomi

This ebook provides an research of the anomalous and topological corridor results in a few itinerant ferromagnets and helimagnets by means of measurements of corridor results pushed by way of electric or warmth present. New clarifications are supplied for spin-dependent corridor results brought on 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 accomplishing the 1st comparative learn of electric and thermal corridor results. The impurity-element dependence of the anomalous corridor impact because of skew scattering is systematically investigated within the low-resistivity sector for Fe. new examples displaying a topological corridor influence are present in helimagnets, within which nonzero scalar spin chirality arises from the modulation of spin constitution via Dzyaloshinsky–Moriya (DM) interplay. this kind of DM-interaction-mediated topological corridor impression is a brand new kind of topological corridor influence. additionally the temperature dependence of topological corridor phrases within the thermal corridor impact and Nernst–Ettingshausen influence is located to be different from that during corridor effect.

These effects may be worthy for functions of spin present to units with low energy consumption.

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Anomalous and Topological Hall Effects in Itinerant Magnets (Springer Theses) by Yuki Shiomi


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