Premium
Crystal growth and domain structure of triglycine sulphate doped with Pt(II)
Author(s) -
Březina B.,
Havránková M.
Publication year - 1987
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/crat.2170220602
Subject(s) - doping , crystal growth , crystallography , domain (mathematical analysis) , materials science , ion , polarization (electrochemistry) , chemistry , optoelectronics , mathematics , mathematical analysis , organic chemistry
The single crystals of triglycine sulphate doped with bivalent Pt‐ions (TGS‐Pt) were grown in full‐shaped form, i.e. with many growth sectors. The domain structure of individual growth sectors was studied by the liquid crystal method. The growth sectors are mostly in a single domain state but spontaneous polarization is reversed in growth sector boundaries, which coincide with charged domain walls. Only the growth sector 001 reveals a blockshaped domain structure, however it differs from usual lenticular domains of the undoped TGS. The concentration of Pt in various growth sectors is different. The growth sectors with the higher concentration of Pt than 3 × 10 −2 % exhibit the unipolarity stable against thermal schocks.