Illusory spirals and loops in crystal growth.
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ABSTRACT:
SUBMITTER: Shtukenberg AG
PROVIDER: S-EPMC3808669 | biostudies-literature | 2013 Oct
REPOSITORIES: biostudies-literature
Publications
Illusory spirals and loops in crystal growth.
Shtukenberg Alexander G AG Zhu Zina Z An Zhihua Z Bhandari Misha M Song Pengcheng P Kahr Bart B Ward Michael D MD
Proceedings of the National Academy of Sciences of the United States of America 20131007 43
The theory of dislocation-controlled crystal growth identifies a continuous spiral step with an emergent lattice displacement on a crystal surface; a mechanistic corollary is that closely spaced, oppositely winding spirals merge to form concentric loops. In situ atomic force microscopy of step propagation on pathological L-cystine crystals did indeed show spirals and islands with step heights of one lattice displacement. We show by analysis of the rates of growth of smaller steps only one molecu ...[more]
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