Figure 1

SEM images of GaSb nanofibers. a Under normal Ga+ ion beam bombardment at 30 keV. b With an incident angle of 70°, Ga+ ion beam bombardment at 30 keV. c and d Under normal Kr+ ion beam bombardment at 150 keV.
SEM images of GaSb nanofibers. a Under normal Ga+ ion beam bombardment at 30 keV. b With an incident angle of 70°, Ga+ ion beam bombardment at 30 keV. c and d Under normal Kr+ ion beam bombardment at 150 keV.