Figure 1

Typical scanning electron microscopy (SEM) image of several lanthanum hexaboride (LaB6) nanostructures: (a1, a2) sparse nanoneedles; (b1, b2) dense nanoneedles; (c1, c2) dense nanonrods; and (d1, d2) nanowire arrays.
Typical scanning electron microscopy (SEM) image of several lanthanum hexaboride (LaB6) nanostructures: (a1, a2) sparse nanoneedles; (b1, b2) dense nanoneedles; (c1, c2) dense nanonrods; and (d1, d2) nanowire arrays.