Tunable synthesis of hexagram-shaped hematite iron oxide microcrystals with shape-dependent magnetic properties.
Uniform hexagram-shaped alpha-Fe2O3 microcrystals with tunable morphologies were fabricated by a facile hydrothermal method followed by annealing in air. The highly anisotropic hexagram-shaped alpha-Fe2O3 particles with the higher coercivity forces and remannent magnetizations showed weak ferromagnetic behaviors at room temperature and displayed the typical shape-dependent magnetic behaviors.
Zhi-Feng
ZF
Dou
Geng-Ping
GP
Wan
Li-Fu
LF
Bao
Chang-Yan
CY
Cao