Figure 1.

FESEM micrographs of the Gaq31D nanostructures fabricated in He of various working pressures at the working temperatures lower than 350 °C:a10 torr at 310 °C,b50 torr at 310 °C,c10 torr at 330 °C, andd50 torr at 330 °C

Yu et al. Nanoscale Research Letters 2009 4:820   doi:10.1007/s11671-009-9321-y