Difference between revisions of "Paracrystal"
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* [http://en.wikipedia.org/wiki/Paracrystalline Wikipedia: Paracrystalline] | * [http://en.wikipedia.org/wiki/Paracrystalline Wikipedia: Paracrystalline] | ||
* A.M. Hindeleh and R. Hosemann [http://iopscience.iop.org/0022-3719/21/23/004 Paracrystals representing the physical state of matter] ''J. Phys. C: Solid State Phys.'' '''1988''', 21, 4155 [http://dx.doi.org/10.1088/0022-3719/21/23/004 doi: 10.1088/0022-3719/21/23/004] | * A.M. Hindeleh and R. Hosemann [http://iopscience.iop.org/0022-3719/21/23/004 Paracrystals representing the physical state of matter] ''J. Phys. C: Solid State Phys.'' '''1988''', 21, 4155 [http://dx.doi.org/10.1088/0022-3719/21/23/004 doi: 10.1088/0022-3719/21/23/004] | ||
| − | * | + | * Buckley Crist [http://onlinelibrary.wiley.com/doi/10.1002/pol.1973.180110403/abstract Small-angle x-ray scattering of semicrystalline polymers. I. Review of existing models] ''J. Poly. Sci.: Poly. Phys.'' '''1973''', 11 (4), 635-661 [http://dx.doi.org/10.1002/pol.1973.180110403 doi: 10.1002/pol.1973.180110403] |
* J. L. Eads and R. P. Millane [http://journals.iucr.org/a/issues/2001/05/00/au0243/au0243bdy.html Diffraction by the ideal paracrystal] ''Acta. Cryst.'' '''2001''', A57, 507-517 [http://dx.doi.org/10.1107/S0108767301006341 doi: 10.1107/S0108767301006341] | * J. L. Eads and R. P. Millane [http://journals.iucr.org/a/issues/2001/05/00/au0243/au0243bdy.html Diffraction by the ideal paracrystal] ''Acta. Cryst.'' '''2001''', A57, 507-517 [http://dx.doi.org/10.1107/S0108767301006341 doi: 10.1107/S0108767301006341] | ||
** Richard Welberry [http://www.iucr.org/news/newsletter/volume-9/number-2/diffraction-by-the-ideal-paracrystal Discussion of: Diffraction by the ideal paracrystal] | ** Richard Welberry [http://www.iucr.org/news/newsletter/volume-9/number-2/diffraction-by-the-ideal-paracrystal Discussion of: Diffraction by the ideal paracrystal] | ||
Revision as of 10:53, 8 September 2014
A paracrystal is a kind of partially disordered crystal; wherein some forms of short and medium-range order of the lattice is present, but where long-range ordering (in at least one direction) does not exist. Many real materials are best though of as paracrystals (and not perfect crystals). I.e. in real materials there is often a well-defined local packing, essentially a unit cell, but this packing does not persist indefinitely without some kind of distortion.
In scattering, paracrystal disorder leads to specific kinds of peak broadening and peak shapes.
See Also
- Wikipedia: Paracrystalline
- A.M. Hindeleh and R. Hosemann Paracrystals representing the physical state of matter J. Phys. C: Solid State Phys. 1988, 21, 4155 doi: 10.1088/0022-3719/21/23/004
- Buckley Crist Small-angle x-ray scattering of semicrystalline polymers. I. Review of existing models J. Poly. Sci.: Poly. Phys. 1973, 11 (4), 635-661 doi: 10.1002/pol.1973.180110403
- J. L. Eads and R. P. Millane Diffraction by the ideal paracrystal Acta. Cryst. 2001, A57, 507-517 doi: 10.1107/S0108767301006341
- Richard Welberry Discussion of: Diffraction by the ideal paracrystal
