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English Wikipedia references for Uhrl.net 1-3 of 3
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| Quasicrystal Quasicrystals are structural forms that are both ordered and nonperiodic. They form patterns that fill all the space but lack translational symmetry. Classical theory of crystals allows only 2, 3, 4, and 6-fold rotational symmetries, but quasicrystals display symmetry of other orders (folds). Quasicrystal | |
| Modified Bragg diffraction in quasicrystals It is commonly assumed that diffraction in quasicrystals, whether of electrons, of x-rays or of neutrons, is Bragg diffraction. Though there are similarities, notably scattering from atomic planes, there are also contrasting differences Modified_Bragg_diffraction_in_quasicrystals | |
| Compromise spacing effect quasicrystals . Compromise_spacing_effect |
