Topological Hall effect induced by classical large-spin background: su(2) path-integral approachстатья
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Дата последнего поиска статьи во внешних источниках: 17 апреля 2024 г.
Аннотация:The su(2) coherent-state path-integral technique is employed to study lattice electrons strongly coupled to a quantum spin background. In the large-spin limit it is replaced by its classical counterpart that breaks the time-reversal symmetry. The fermions propagating through a classical large-spin texture may then exhibit the topological Hall effect which arises even for a zero scalar spin chirality of the underlying spin background.