The magnetic ground state of polycrystalline Nel skyrmion hosting material GaV₄S₈ has been investigated using ac susceptibility and powder neutron diffraction. In the absence of an applied magnetic field GaV₄S₈ undergoes a transition from a paramagnetic to a cycloidal state below 13K and then to a ferromagnetic-like state below 6K. With evidence from ac susceptibility and powder neutron diffraction, we have identified the commensurate magnetic structure at 1.5K, with ordered magnetic moments of 0.23(2)μ _B on the V1 sites and 0.22(1)μ _B on the V2 sites. These moments have ferromagnetic-like alignment but with a 39(8) canting of the magnetic moments on the V2 sites away from the V₄ cluster. In the incommensurate magnetic phase that exists between 6 and 13K, we provide a thorough and careful analysis of the cycloidal magnetic structure exhibited by this material using powder neutron diffraction.

已经使用交流磁化率和粉末中子衍射研究了多晶 Nel skyrmion 宿主材料 GaV ₄ S ₈的磁基态。在没有外加磁场的情况下，GaV ₄ S ₈经历从顺磁性到低于 13K 的摆线状态，然后到低于 6K 的类铁磁状态的转变。根据交流磁化率和粉末中子衍射的证据，我们确定了 1.5K 处的相称磁结构，V1 位点上的有序磁矩为 0.23(2) μ _B和 0.22(1) μ _B 在 V2 网站上。这些磁矩具有类似铁磁的排列，但在远离 V ₄簇的 V2 位点上具有 39(8) 的磁矩倾斜。在 6 到 13K 之间存在的不公度磁相中，我们使用粉末中子衍射对这种材料表现出的摆线磁结构进行了彻底而仔细的分析。