论文标题
多元化的Ruderman-kittel-kasuya-yosida相互作用
Diversified Ruderman-Kittel-Kasuya-Yosida Interactions in a Nonsymmorphic Crystal
论文作者
论文摘要
我们表明，在涉及非形态空间组的中心对称晶体中，磁性杂质之间存在多样化的ruderman-kittel-kitlel-kasuya-yosida（rkky-yosida（rkky）相互作用）。我们以$ p4/nmm $ $太空群体为例。我们证明，包括海森堡型，dzyaloshinskii-moriya（DM）型，ISING-TYPE和各向异性相互作用的不同类型的相互作用可以根据实际空间中杂质的位置出现。它们的优势在很大程度上取决于巡回电子在倒数空间中的位置。多样性源于位置依赖性位点组和动量依赖性的电子结构，由非晶格对称性保证。我们的研究揭示了非形态对称性在影响磁性方面的作用，并表明非肌晶体可以是设计磁相互作用的有希望的平台。
We show that there are diversified Ruderman-Kittel-Kasuya-Yosida (RKKY) interactions between magnetic impurities, mediated by itinerant electrons, in a centrosymmetric crystal respecting a nonsymmorphic space group. We take the $P4/nmm$ space group as an example. We demonstrate that the different type of interactions, including the Heisenberg-type, the Dzyaloshinskii-Moriya (DM)-type, the Ising-type and the anisotropic interactions, can appear in accordance with the positions of the impurities in the real space. Their strengths strongly depend on the location of the itinerant electrons in the reciprocal space. The diversity stems from the position-dependent site groups and the momentum-dependent electronic structures guaranteed by the nonsymmorphic symmetries. Our study unveils the role of the nonsymmorphic symmetries in affecting magnetism, and suggests that the nonsymmorphic crystals can be promising platforms to design magnetic interactions.
