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Books > Professional & Technical > Electronics & communications engineering > Electronics engineering > Electronic devices & materials > Semi-conductors & super-conductors
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Anomalous and Topological Hall Effects in Itinerant Magnets (Paperback, 2013 ed.)
Loot Price: R3,120
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Anomalous and Topological Hall Effects in Itinerant Magnets (Paperback, 2013 ed.)
Series: Springer Theses
Expected to ship within 10 - 15 working days
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This book presents an investigation of the anomalous and
topological Hall effects in some itinerant ferromagnets and
helimagnets by measurements of Hall effects driven by electrical or
heat current. New clarifications are provided for spin-dependent
Hall effects induced by the Berry phase, skew scattering, and
scalar spin chirality. The author reveals the scattering-free
nature of the Berry-phase-induced anomalous Hall current by
conducting the first comparative study of electrical and thermal
Hall effects. The impurity-element dependence of the anomalous Hall
effect caused by skew scattering is systematically investigated in
the low-resistivity region for Fe. Two new examples showing a
topological Hall effect are found in helimagnets, in which nonzero
scalar spin chirality arises from the modulation of spin structure
through Dzyaloshinsky-Moriya (DM) interaction. Such a
DM-interaction-mediated topological Hall effect is a new type of
topological Hall effect. Also the temperature dependence of
topological Hall terms in the thermal Hall effect and
Nernst-Ettingshausen effect is found to be totally different from
that in the electrical Hall effect. These results will be useful
for applications of spin current to devices with low power
consumption.
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