Difficulties in the growth and characterization of non-linear optical materials: A case study of salts of amino acids |
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Authors: | Michel Fleck Aram M Petrosyan |
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Institution: | 1. Universität Wien—Geozentrum, Institut für Mineralogie und Kristallographie, Althanstraße 14, A-1090 Wien, Austria;2. Institute of Applied Problems of Physics, NAS of Armenia, 25 Nersessyan Str., 0014 Yerevan, Armenia |
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Abstract: | In the crystallographic literature, there is an ever-increasing number of publications on crystals that are referred to as ‘new non-linear optical materials’, many of them reporting salts of amino acids. However, the term NLO material is used improperly in most cases. In fact, the establishment of any crystal species as such a material requires several experimental and computational procedures, which are seldom satisfied when characterizing a supposedly new species. Here, some frequent hazards and problems are addressed and observations of papers reporting amino acid compounds as supposedly new NLO materials are made. |
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Keywords: | A1 Erroneous data A2 Growth from solution B1 Amino acid salts B2 Non-linear optical materials |
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