Formation and Device Application of Ge Nanowire Heterostructures via Rapid Thermal Annealing
Figure 8
Schematic illustration of the epitaxial relationships of (a) the Ni2Ge/Ge interface in the Ni2Ge/Ge/Ni2Ge nanowire heterostructure and (b) the NiGe/Ge interface in the Ni2Ge/NiGe/Ge/NiGe/Ni2Ge nanowire heterostructure, respectively. Both of them show “twisted” but different growth modes. The grey and purple balls represent the Ni and Ge atoms in the NixGe lattice, respectively, while the blue one represents the Ge atom in the Ge lattice. Reproduced from [14].
