Figure 3
Crystallographically oriented nanometer-sized ε-Fe2O3.
(a) XRPD pattern of the crystallographically oriented S-1020 nanocrystal (average particle size = 8.2 nm) film. Grey dots and red line represent the observed and calculated patterns, respectively. The inset is the unit sphere illustration of the 3D distribution of the direction of the crystallographic a-axis of ε-Fe2O3 nanoparticles shown by red dots. The magnetic field was applied along the Z axis of the unit sphere. (b) The magnetic hysteresis loop of the crystallographically oriented S-1020 nanocrystal film measured in the applied magnetic field (H0) parallel to the easy-axis at 300 K. The red line is a guide to the eye.
