Using solid source molecular beam epitaxy (MBE) of gallium antimonide (GaSb
) and indium antimonide (InSb), we have demonstrated(1) the ability to grow
dislocation free lattice mismatched materials on gallium arsenide (GaAs) s
ubstrates formed by a twist bonding process. Lo et al.(2) proposed that it
would be possible to create a compliant universal substrate capable of allo
wing the epitaxial growth of lattice mismatched materials without dislocati
ons.