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Surface and bulk spin waves in antiferromagnetic perovskites and their interaction with defects near surfaces

机译:反铁磁钙钛矿中的表面和整体自旋波及其与表面附近缺陷的相互作用

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摘要

The effect of a single magnetic impurity on the excitation spectrum of a semi-infinite Heisenberg antiferromagnet is studied by Green-function methods. The influence of bulk and surface spin waves on the impurity-mode energies is determined, and the theory is applied to perovskite-structure antiferromagnets.
机译:通过格林函数方法研究了单一磁性杂质对半无限海森堡反铁磁体的激发光谱的影响。确定了体和自旋波对杂质模式能量的影响,并将该理论应用于钙钛矿结构反铁磁体。

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