Exploring the Magnetic Phase Diagram and Hall Resistivity Suppression in Centrosymmetric GdOs2Si2 Single Crystal.

Magnetic skyrmions were initially identified in non-centrosymmetric materials. However, recent theoretical advancements have suggested their potential emergence in centrosymmetric compounds, which has been experimentally observed in cases such as GdRu₂Si₂. In this study, we comprehensively explored the magnetic properties of GdOs₂Si₂, a centrosymmetric counterpart to GdRu₂Si₂, with a focused investigation into the crystal direction-dependent behavior of key parameters. By combining magnetic, thermal, and transport measurements, we constructed a detailed magnetic phase diagram along two crystal directions, revealing intriguing similarities and differences compared to GdRu₂Si₂. Notably, we observed a distinct suppression of the Hall resistivity in GdOs₂Si₂ — a phenomenon absent in its counterpart compound. [ABSTRACT FROM AUTHOR]