Speaker
Jaemun Park
(DGIST)
Description
Hexagonal phases where 3d transition metals are involved may show intriguing phenomena derived from spin frustration. Herein we report single crystal growth of isostructural T_(2-x)Sn hexagonal phases and their magnetic behaviors. All single crystals were grown by flux method. We found Mn_3Sn_2 and Fe_5Sn_3 exhibited ferromagnetic ordering. Fascinatingly, Mn_3Sn_2 exhibited spin reorientation and hysteresis at the low temperature, whereas Fe_5Sn_3 remained soft magnet. On the other hand, Co_3Sn_2 and Ni_3Sn_2 were paramagnet. Still, their magnetic behavior may be potentially undergone transition to ferromagnet by doping atoms or increasing compositions.
