Advanced Materials, Vol.23, No.11, 1356-1360, 2011
Super Deformability and Young's Modulus of GaAs Nanowires
A significant size effect on the mechanical properties of GaAs nanowires (NWs) is reported. A remarkable elastic strain of approximate to 11% for NWs with diameters of 50-150 nm and obvious plastic deformation in NWs with diameters <= 25 nm are revealed. The Young's modulus of the NWs can be more than double that of bulk GaAs.