Download e-book for kindle: Anomalous and Topological Hall Effects in Itinerant Magnets by Yuki Shiomi

By Yuki Shiomi

This booklet provides an research of the anomalous and topological corridor results in a few itinerant ferromagnets and helimagnets by way of measurements of corridor results pushed by means of electric or warmth present. New clarifications are supplied for spin-dependent corridor results triggered through the Berry part, skew scattering, and scalar spin chirality.

The writer finds the scattering-free nature of the Berry-phase-induced anomalous corridor present by way of carrying out the 1st comparative learn 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 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 sort of DM-interaction-mediated topological corridor impression is a brand new form of topological corridor impression. additionally the temperature dependence of topological corridor phrases within the thermal corridor influence and Nernst–Ettingshausen impact is located to be different from that during corridor effect.

These effects should be valuable for functions 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

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