发表机构
University of Würzburg; Institute for Theoretical Physics and Astrophysics, University of Würzburg（维尔茨堡大学; 维尔茨堡大学理论与天体物理研究所）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
该研究揭示p波反铁磁体可通过磁子轨道磁矩产生线性热埃德尔斯坦效应与非互易轨道电流，建立了反铁磁体的轨道版本，连接磁子学与轨道电子学，为轨道电流整流提供了候选材料。
AI 中文摘要
我们证明，p波磁体可通过其磁子的轨道磁矩产生线性热埃德尔斯坦效应，高效生成磁化强度；此外，它们还能通过纯偶阶非线性响应产生完全非互易的轨道电流，这使其成为轨道电流整流的理想候选材料。由于这些输运现象源于磁子的轨道磁矩，因此它们连接了磁子学与轨道电子学。更普遍地，我们发现具有共面基态的奇宇称波磁体所拥有的磁子，其自旋磁矩为零，取而代之的是携带共线的面外轨道磁矩，实现了反铁磁体的轨道版本。我们利用对称性论证确立了这些一般性结果，并以受CeNiAsO基态启发的、具有最少子晶格数的共面基态为例明确展示了这些结果，我们的结论在有无自旋轨道耦合时均成立。
英文摘要
We show that $p$-wave magnets efficiently generate magnetization via a linear thermal Edelstein effect arising from the orbital magnetic moments of their magnons. Furthermore, they can generate perfectly nonreciprocal orbital currents through a purely even-order nonlinear response. This makes them promising candidates for orbital-current rectification. Because these transport phenomena originate from the orbital magnetic moment of magnons, they connect magnonics and orbitronics. More generally, we find that odd-parity-wave magnets with coplanar ground states host magnons with zero spin magnetic moment. Instead the magnons carry a collinear, out-of-plane orbital magnetic moment, realizing an orbital version of antialtermagnetism. We establish these general results using symmetry arguments and demonstrate them explicitly for a coplanar ground state with the minimal number of sublattices, inspired by the ground state of CeNiAsO. Our conclusions hold both in absence and presence of spin-orbit coupling.
Comments12 pages, 5 figures
