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...) that reduce the degree of structural perfection. The most highly perfect crystals are silicon [[Boule (crystal)|boules]] produced for semiconductor electroni * '''hypocrystalline''' rocks are partially crystalline, with crystals embedded in an amorphous or glassy matrix; ...

...en gigantic highly ordered crystals ([[Naica Mine]]). However, in reality, crystals are never perfect and have impurities or defects, which means that a foreig ...

...ly organic ionic plastic crystals (OIPCs) and protic organic ionic plastic crystals (POIPCs).<ref name="1,2,4-Triazolium perfluorobutanesulfonate as an archety X- ray [[diffraction]] patterns of plastic crystals are characterized by strong diffuse intensity in addition to the sharp Brag ...

...] to calculate EFGs and provide a deeper understanding of specific EFGs in crystals from measurements. ...013|title=Algorithm to compute the electric field gradient tensor in ionic crystals ...

| Crystals || - || Surface mount or metal can ...

...rles Kittel |author-link=Charles Kittel |title=Theory of Antiferroelectric Crystals |journal=[[Physical Review|Phys. Rev.]] |volume=82 |issue= 5|pages=729–732 ...

...orm of an [[electric current]]) is applied to the domain, which causes the crystals to deflect from the "easy" to "hard" positions. The energy required to do t ...

...2016PhRvL.117i0402E|pmid=27610834|page=090402|s2cid=1652633}}</ref> [[Time crystals]], a state of matter first observed in 2017, break time-translation symmetr [[Time crystals]], a state of matter first observed in 2017, break discrete time-translatio ...

...|title=Possible Realization of Directional Optical Waveguides in Photonic Crystals with Broken Time-Reversal Symmetry |journal=Physical Review Letters |date=1 ...4865 }}</ref> bi-anisotropic [[Metamaterial|meta-materials]], and photonic crystals.<ref>{{cite journal |last1=Wu |first1=Long-Hua |last2=Hu |first2=Xiao |titl ...

*[[Ferroelectric effect]] &mdash; The phenomenon whereby certain ionic crystals may exhibit a spontaneous dipole moment. *[[Piezoelectric effect]] &mdash; Ability of certain crystals to generate a voltage in response to applied mechanical stress. ...

[[Category:Crystals]] ...

...uos |author2=Johnson SG |author3=Winn JN |author4=Meade RD |title=Photonic crystals : molding the flow of light ...

# [[Pressure]]: Energy produced by compressing or decompressing specific crystals. ...to as [[piezoelectricity]]. Many crystalline materials such as the natural crystals of quartz and Rochelle salted together with manufactured polycrystalline ce ...

...a phenomenon observed in some [[antiferromagnetic]] and [[ferrimagnetic]] crystals. It is characterized by a linear coupling between the system's [[magnetic p ...

In solid electrolytes (glasses or crystals), the ionic conductivity σ_i can be any value, but it should be m ...e= Fast ion conduction character and ionic phase-transitions in disordered crystals: the complex case of the minerals of the pearceite– polybasite group |journ ...

...boundary conditions|periodic]] (a sensible assumption for the interiors of crystals). One repeating unit of this hypothetical periodic system is called a ''uni ...ult can be reconciled with the finite energy of real crystals because such crystals are not infinite, i.e. have a particular boundary. More specifically, the b ...

In [[Crystal|crystals]], the [[Electronic density|electron density]] is periodic and invariant wi ...

===Cubic crystals=== ...| last2 = Nigam | first2 = S.D. | title = Invariant Elastic Constants for Crystals | journal = Journal of Mathematics and Mechanics | year = 1969 | volume = 1 ...

...Greek: ''pyr'' (πυρ), "fire" and [[electricity]]) is a property of certain crystals which are naturally electrically polarized and as a result contain large el ...ectric charge in [[mineral]]s develops on the opposite faces of asymmetric crystals. The direction in which the propagation of the charge tends is usually cons ...

...lectricity|Piezoelectric crystals]] – converts deformations of solid-state crystals (vibrations) to and from electrical signals ...