Short range order
In crystallography, short range order refers to the regular and predictable arrangement (i.e. crystalline lattice) of atoms over a short distance, usually with one or two atom spacings. However, this regularity described by short-range order does not necessarily apply to a larger area.[1] Examples of materials with short range order include amorphous materials such as wax, glass and liquids[2] as well as the collagen fibrils of the stroma in the cornea.[3]
Besides ordering of atoms, short-range ordering of vacancies are also possible. Example of systems with short-range ordering of oxygen-vacancies include oxygen-deficient stoichiometries of the superconductors YBa2Cu2O7−δ, Nd2−xCexCuO4−y; as well as perovskites and novel bismuth sillenites.[4][5][6][7][8]
See also
[edit | edit source]References
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- ^ Becerro, Ana I., et al. "The transition from short-range to long-range ordering of oxygen vacancies in CaFe_x Ti_1-x O 3− x/2 perovskites." Physical Chemistry Chemical Physics 2.17 (2000): 3933-3941.
- ^ C. McCammon, A. Becerro, F. Langenhorst, R. Angel, S. Marion, and F. Seifert, Journal of Physics: Condensed Matter 12, 2969 (2000).
- ^ C. Hou, A. Manthiram, L. Rabenberg, and J. Goodenough, Journal of Materials Research 5, 9 (1990).
- ^ D. Werder, C. Chen, R. Cava, and B. Batlogg, Physical Review B 37, 2317 (1988) | https://doi.org/10.1103/PhysRevB.37.2317.
- ^ Scurti, Craig A., et al. "Electron diffraction study of the sillenites Bi12SiO20, Bi25FeO39 and Bi25InO39: Evidence of short-range ordering of oxygen-vacancies in the trivalent sillenites." AIP Advances 4.8 (2014): 087125. | https://doi.org/10.1063/1.4893341