An unexpected finding two decades ago demonstrated that Shockley electron states in noble metal surfaces are spin-polarized, forming a circulating spin texture in reciprocal space. The fundamental role played by the spin degree of freedom was then revealed, even for a non-magnetic system, whenever the spin-orbit coupling was present with some strength. Here, we demonstrate that, similarly to electrons in the presence of spin-orbit coupling, the propagating vibrational modes are also accompanied by a well-defined magnetic oscillation even in non-magnetic materials. Although this effect is illustrated by considering a single layer of the WSe₂ dichalogenide, the phenomenon is completely general and valid for any non-magnetic material with spin-orbit coupling. The emerging phonon-induced magnetic oscillation acts as an additional effective flipping mechanism for the electron spin and its implications in the transport and scattering properties of the material are evident and profound.

二十年前的意外发现证明，贵金属表面的肖克利电子态是自旋极化的，在相互的空间中形成循环的自旋织构。然后揭示了自旋自由度所起的基本作用，即使对于非磁性系统，只要自旋轨道耦合存在一定强度即可。在这里，我们证明，类似于电子在存在自旋轨道耦合的情况下，即使在非磁性材料中，传播的振动模式也伴随着定义明确的磁振荡。尽管可以通过考虑WSe ₂的单层来说明这种效果二卤化物，这种现象是完全普遍的，并且对于具有自旋轨道耦合的任何非磁性材料都是有效的。出现的由声子引起的磁振荡是电子自旋的另一种有效的翻转机制，它对材料的传输和散射特性的影响是显而易见的。