11. Adding about one percent of Indium in each layer better matches lattice constants of the different layers. 12. Lattice constants can be determined using techniques such as X-ray diffraction or with an atomic force microscope.13. In that case special measures have to be taken to avoid mechanical strain from differences in lattice constants . 14. The lattice constant is 0.61 nm. 15. Together with an accurately aligned micropositioner a map of the lattice constant through the metal can be derived. 16. These wires, produced using chemical vapor deposition ( CVD ), have a reported lattice constant of 4.1 ? 17. The lattice constant or lattice parameter refers to the constant distance between unit cells in a crystal lattice. 18. By alloying multiple compounds, some semiconductor materials are tunable, e . g ., in band gap or lattice constant . 19. Frankdicksonite has fluorite crystal structure with a cubic symmetry and the lattice constant " a " = 619.64 pm. 20. The use of Ge is mainly due to its lattice constant , robustness, low cost, abundance, and ease of production.