居里一维反铁磁体
Curvilinear one-dimensional antiferromagnets
摘要：
反铁磁体拥有奇异的准粒子，支持高频激发，是未来自旋电子和自旋轨道电子技术的关键推动者。在这里，我们提出了一个概念的曲线反铁磁性材料的响应可以定制的几何曲率，而不需要调整材料参数。我们发现，一个固有的非手性一维（1D）曲线反铁磁体的行为与几何可调的Dzyaloshinskiii-Moriya相互作用（）和取向的Néel矢量的手征helimagnet。曲率诱导的自旋波模式的杂交的结果，并使几何驱动的低频分支的局部最小值。这将曲线一维反铁磁体定位为实现反铁磁自旋轨道电子学的几何可调手征反铁磁体和在动量空间中形成相干磁振子凝聚的基本发现的新平台。
英文摘要：
Antiferromagnets host exotic quasiparticles, support high frequency excitations and are key enablers of the prospective spintronic and spin-orbitronic technologies. Here, we propose a concept of a curvilinear antiferromagnetism where material responses can be tailored by a geometrical curvature without the need to adjust material parameters. We show that an intrinsically achiral one-dimensional (1D) curvilinear antiferromagnet behaves as a chiral helimagnet with geometrically tunable Dzyaloshinskii--Moriya interaction (DMI) and orientation of the Néel vector. The curvature-induced DMI results in the hybridization of spin wave modes and enables a geometrically-driven local minimum of the low frequency branch. This positions curvilinear 1D antiferromagnets as a novel platform for the realization of geometrically tunable chiral antiferromagnets for antiferromagnetic spin-orbitronics and fundamental discoveries in the formation of coherent magnon condensates in the momentum space.
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