Thickness-Tunable Zoology of Magnetic Spin Textures Observed in Fe₅GeTe₂.

ABSTRACT: The family of two-dimensional (2D) van der Waals (vdW) materials provides a playground for tuning structural and magnetic interactions to create a wide variety of spin textures. Of particular interest is the ferromagnetic compound Fe₅GeTe₂ that we show displays a range of complex spin textures as well as complex crystal structures. Here, using a high-brailliance laboratory X-ray source, we show that the majority (1 × 1) Fe₅GeTe₂ (FGT5) phase exhibits a structure that was previously considered as being centrosymmetric but rather lacks inversion symmetry. In addition, FGT5 exhibits a minority phase that exhibits a long-range ordered (√3 × √3)-R30° superstructure. This superstructure is highly interesting in that it is innately 2D without any lattic

SUBMITTER: Gopi AK 

PROVIDER: S-EPMC10883052 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature