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Cover Picture (Angew. Chem. Int. Ed. Engl. 2/1994)
Publication year - 1994
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199401311
Subject(s) - cover (algebra) , int , chemistry , computer science , engineering , programming language , mechanical engineering
The cover picture shows a Fe 3+ ‐doped KNbO 3 single crystal (formed from the orthorhombic, ferroelectric phase of KNbO 3 ), which can be obtained from a molten K 2 O solution at 1050 °C, as well a matchstick for comparison (crystal growth: H. Wüest, ETH Zürich; photograph: M. Bischof, ETH Zürich). The crystals, which are yellow because of the doping with Fe 3+ ions, can be used for information storage in a purely optical way (holography). Pure KNbO 3 crystals are colorless and are applied in nonlinear optical materials to generate green and blue laser light. The critical review by J. Hulliger on p. 143 ff contains valuable information about crystal growth.