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|Type:||Artigo de periódico|
|Title:||Imaging two-dimensional ice-like structures at room temperature|
de Souza, EF
|Abstract:||In this Letter, we report scanning force microscopy images with sufficient lateral resolution to microscopically identify the distinct ice-like structures on mica at finite humidity. The pattern calculated by Odelius et al. (1997)  for bilayers, e. g. a 2D ice-like structure that coincides with the unit cell of mica, was observed at molecular clusters edges and an ice-like with a hexagonal structure at its center. Other regions showing structures with a periodicity of 0.76 +/- 0.07 nm, possibly associated with a rhombohedral structure, and 0.63 +/- 0.06 nm a cubic structure, may be described as regions with compactly bonded intermixed structures. (C) 2009 Elsevier B. V. All rights reserved.|
|Editor:||Elsevier Science Bv|
|Appears in Collections:||Artigos e Materiais de Revistas Científicas - Unicamp|
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