Carbonate orientational order and superlattice structure in vaterite
نویسندگان
چکیده
منابع مشابه
Surface Structure and Morphology of Calcium Carbonate Polymorphs Calcite, Aragonite, and Vaterite: An Atomistic Approach
Atomistic simulation techniques have been employed to investigate the effect of molecular adsorption of water on the low-index surfaces of calcite, aragonite, and vaterite. Calculated surface and hydration energies agree with experiment and previous calculations where available. Known experimental surface features are reproduced, i.e., 1 × 1 symmetry and structural features of the calcite {101h...
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We study the formulation of bond-orientational order in an arbitrary two dimensional geometry. We find that bond-orientational order is properly formulated within the framework of differential geometry with torsion. The torsion reflects the intrinsic frustration for two-dimensional crystals with arbitrary geometry. Within a DebyeHuckel approximation, torsion may be identified as the density of ...
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Copyright and reuse: The Warwick Research Archive Portal (WRAP) makes this work of researchers of the University of Warwick available open access under the following conditions. This article is made available under the Creative Commons Attribution 3.0 (CC BY 3.0) license and may be reused according to the conditions of the license. For more details see: A note on versions: The version presented...
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The deuterium nuclear magnetic resonance (2H NMR) spectrum of perdeuterated tetradecanol in a mixture of 1-palmitoyl-2-oleoyl-phosphatidylethanolamine (POPE) and water was used to compare the variation of the acyl chain orientational order parameter, S(n), with carbon position, n, in the liquid crystalline lamellar (La) and hexagonal (HI,) phases. The characteristic independence of S(n) with n ...
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Disordered structures are not random structures. There is still order i< an amorphous or a liquid material. The main point is the lack of periodicity which was the reference for the definition of the order. Crystalline order supposes three types of order : The local order The positional order Tbe orientational order Al1 these orders interact one with the other. In amorphous or liquid structures...
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ژورنال
عنوان ژورنال: Journal of Crystal Growth
سال: 2014
ISSN: 0022-0248
DOI: 10.1016/j.jcrysgro.2014.08.028