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Anomalous and Topological Hall Effects in Itinerant Magnets by Yuki Shiomi

By Yuki Shiomi

This ebook 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 through electric or warmth present. New clarifications are supplied for spin-dependent corridor results precipitated via 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 engaging in the 1st comparative examine of electric and thermal corridor results. The impurity-element dependence of the anomalous corridor influence brought on by skew scattering is systematically investigated within the low-resistivity zone 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. any such DM-interaction-mediated topological corridor impact 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 completely different from that during corridor effect.

These effects could be invaluable 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)

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

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