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Direct Growth of Aggregates on {110} Faces of Cadmium Mercury Thiocyanate Crystals
Author(s) -
Jiang X.N.,
Xu D.,
Sun D.L.,
Yuan D.R.,
Lu M.K.,
Gou S.Y.,
Yu X.L.
Publication year - 2002
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/1521-4079(200202)37:1<43::aid-crat43>3.0.co;2-d
Subject(s) - supersaturation , thiocyanate , crystallography , crystal growth , chemistry , cadmium , chemical physics , nucleation , crystal (programming language) , chemical engineering , materials science , inorganic chemistry , organic chemistry , computer science , engineering , programming language
New growth phenomena ‐ direct incorporation of aggregates have been observed on the {110} faces of cadmium mercury thiocyanate CdHg(SCN) 4 crystals by atomic force microscopy. These aggregates grow in two forms: some directly cover up the steps and forms new growth layers; while others are just incorporated at the step edges. These aggregates, which are mostly oriented along [111] direction, are formed by small columnar structural units. The aggregates have the similar structure of CdHg(SCN) 4 crystals and greatly vary in nature with the variation of solution supersaturation σ and growth time t. With the increase of σ the aggregates become larger, consistent with the variation of growth units dimension with the supersaturation; and with the increase of growth time the aggregates become more structurally substantial. These observations have led to a new understanding about the crystal growth.