2026-10-14T17:14:58Z https://api.figshare.com/v2/oai

oai:figshare.com:article/33804484 2026-09-15T15:56:42Z portal_1197 item_type_3 month_year_09_2026

Data for Establishing magneto-structural relationships in the solid solutions of the skyrmion hosting family of materials GaV4S8-ySey Aleš Štefančič (24908983) S. J. R. Holt (24909007) Martin R. Lees (1896280) Clemens Ritter (1466062) M. J. Gutmann (17259121) Tom Lancaster (1422454) Geetha Balakrishnan (5439575) Skyrme model Magnetic materials Migrated from ePrints The GaV4S8-ySey (y = 0 to 8) family of materials have been synthesized in both polycrystalline and single crystal form, and their structural and magnetic properties thoroughly investigated. Each of these materials crystallizes in the F ¯43m space group at ambient temperature. However, in contrast to the end members GaV4S8 and GaV4Se8, that undergo a structural transition to the R3m space group at 42 and 41 K respectively, the solid solutions (y = 1 to 7) retain cubic symmetry down to 1.5 K. In zero applied field the end members of the family order ferromagnetically at 13 K (GaV4S8) and 18 K (GaV4Se8), while the intermediate compounds exhibit a spin-glass-like ground state. We demonstrate that the magnetic structure of GaV4S8 shows localization of spins on the V cations, indicating that a charge ordering mechanism drives the structural phase transition. We conclude that the observation of both structural and ferromagnetic transitions in the end members of the series in zero field is a prerequisite for the stabilization of a skyrmion phase, and discuss how the absence of these transitions in the y = 1 to 7 materials can be explained by their structural properties.<br><br>Data record consists of a zip archive, divided into subfolders according to data, an index file in raw text format and an accompanying readme file. All data are excel files. Further information on specific data files can be found in the accompanying readme file. 2026-09-15T15:56:42Z Dataset Dataset 10.82444/warw.33804484.v1 https://figshare.com/articles/dataset/Data_for_Establishing_magneto-structural_relationships_in_the_solid_solutions_of_the_skyrmion_hosting_family_of_materials_GaV4S8-ySey/33804484 CC BY 4.0