Figure 5

M-H curves for NiFe-BFC coreshell nanowires with diameter (a) 300 nm and (b) 100 nm. (c) M-H curves for NiFe-BFC core-shell nanotubes with diameter 300 nm (d) TEM of NiFe-BFC core-shell nanotube.
M-H curves for NiFe-BFC coreshell nanowires with diameter (a) 300 nm and (b) 100 nm. (c) M-H curves for NiFe-BFC core-shell nanotubes with diameter 300 nm (d) TEM of NiFe-BFC core-shell nanotube.