Short range order

Short description: When crystalline ordering in a solid only extends a short distance

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 YBa
2Cu

7-δ, Nd
2-xCe
xCuO
4-y; as well as perovskites and novel bismuth sillenites.[4][5][6][7][8]

## See also

* Order and disorder
* Structure of liquids and glasses

## References

1. ↑ Owens, Frank J.; Poole, Charles P. Jr. (2008-04-11) (in en). The Physics and Chemistry of Nanosolids. John Wiley & Sons. ISBN 9780470067406. https://books.google.com/books?id=sBhZnPPgt90C&q=short+range+order+chemistry&pg=PA2.
2. ↑ "Crystalography". April 2014. https://www.slideshare.net/mobile/anshulbehappy/crystalography-33018315.
3. ↑ Meek, KM; Knupp, C (2015). "Corneal structure and transparency". Prog Retin Eye Res 49: 1–16. doi:10.1016/j.preteyeres.2015.07.001. PMID 26145225.
4. ↑ 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.
5. ↑ C. McCammon, A. Becerro, F. Langenhorst, R. Angel, S. Marion, and F. Seifert, Journal of Physics: Condensed Matter 12, 2969 (2000).
6. ↑ C. Hou, A. Manthiram, L. Rabenberg, and J. Goodenough, Journal of Materials Research 5, 9 (1990).
7. ↑ D. Werder, C. Chen, R. Cava, and B. Batlogg, Physical Review B 37, 2317 (1988) | https://doi.org/10.1103/PhysRevB.37.2317.
8. ↑ 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

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