Speaker
Description
Topological spin textures in solids are of great interest for future spin-electronic technologies. Recent studies of chiral cubic materials hosting skyrmions—such as the itinerant magnets MnSi and FeGe and the Mott insulator Cu2OSeO3—have shown that they exhibit a common set of magnetic phases characterized by long-period spin modulations and undergo similar field-induced transitions. Here, we investigate the structural and magnetic properties of BaFeGaO4 using x-ray diffraction, neutron diffraction, and magnetic measurements. BaFeGaO4 crystallizes in the hexagonal crystal system with space group P63. Magnetic susceptibility measurements performed at fields of 0.01 and 1 T reveal an inflection point near T≈50K, indicating a magnetic phase transition. Magnetic hysteresis observed at T=2K suggests the development of ferromagnetic behavior. Neutron diffraction measurements on powder samples show no additional magnetic Bragg peaks down to 2 K; however, a slight enhancement in intensity superimposed on the nuclear reflections indicates the presence of weak ferromagnetic correlations and potentially novel spin textures in this system.
| Academic or Professional Status | Graduate Student |
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