منابع مشابه
Simulation of twinned crystal growth and its twinning ratio distribution
bR crystal growth was modeled by a one-dimensional model. The growth begins from a single layer and proceeds by consecutive addition of new layers to each surface of the crystal alternatively (Figure 1). A new layer is added to the CP surface either by forming CP-EC or CP-CP contact, and to the EC surface by forming EC-CP or CP-CP contacts with fixed relative probabilities P1 and P2 (Figure 1)....
متن کاملTwinning-, Polytypism-, and Polarity-Induced Morphological Modulation in Nonplanar Nanostructures with van der Waals Epitaxy
Twinning, polytypism, and polarity are important aspects in nanostructural growth since their presence can affect various properties of the as-grown products. The morphology of nanostructures grown via van der Waals epitaxy is shown to be strongly infl uenced by the twinning density and the presence of polytypism within the nanostructures, while the growth direction is driven by the compound po...
متن کاملNested collections and polytypism
A point free calculus of so called collection types is presented similar to the monadic calculus of Tannen Buneman and Wong We observe that our calculus is parametrised by a monad thus making the calculus polytypic A novel contribution of the paper is to discuss situations in which a single application involves more than one collection type In particular we outline the contribution to database ...
متن کاملSpinodal twinning of a deformed crystal
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متن کاملA mechanism for crystal twinning in the growth of diamond by chemical vapour deposition.
A model for the formation of crystal twins in chemical vapour deposited diamond materials is presented. The twinning mechanism originates from the formation of a hydrogen-terminated four carbon atom cluster on a local {111} surface morphology, which also serves as a nucleus to the next layer of growth. Subsequent growth proceeds by reaction at the step edges with one and two carbon atom-contain...
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ژورنال
عنوان ژورنال: Journal of the Mineralogical Society of Japan
سال: 1967
ISSN: 1883-7018,0454-1146
DOI: 10.2465/gkk1952.8.special1_1