Nonequilibrium dynamical behavior in noncoplanar magnets with chiral spin texture
PHYSICAL REVIEW B(2022)
摘要
We observe nonequilibrium dynamical magnetic behavior in the magnetically ordered phase of a Tsai-type TbAu-Si quasicrystal approximant system. The magnetic texture in the ordered phase is found to exhibit scalar spin chirality (SSC) order, inferring that SSC is the order parameter of the present magnetic system. We further find that the introduction of ???pseudo-Tsai??? clusters, associated with additional Tb atoms in the structure, induces spinglass dynamics. We discuss the observed dynamical magnetic behavior in the Tb-Au-Si systems, considering the effect of the pseudo-Tsai clusters on the magnetic configuration and local spin chirality.
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关键词
noncoplanar magnets,spin,dynamical behavior
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