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Czochralski growth and constitutional studies on single crystals of potassium lithium niobate (KLN)
Author(s) -
Podlojenov S.,
Burianek M.,
Mühlberg M.
Publication year - 2003
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.200310130
Subject(s) - empa , lithium niobate , electron microprobe , potassium niobate , chemistry , potassium , analytical chemistry (journal) , lithium (medication) , anisotropy , ferroelectricity , tantalate , doping , mineralogy , materials science , optics , optoelectronics , medicine , physics , organic chemistry , chromatography , dielectric , endocrinology
The ferroelectric phase of potassium lithium niobate K 3 Li 2−x Nb 5+x O 15 (KLN) is a very promising material for the conversion of infrared light to light in the visible region. However, growing of single crystals is known to be complicated due to the considerable anisotropy of the growth rate and the thermal expansion behaviour. The single crystals of KLN, Mg 2+ ‐doped KLN, as well as the mixed crystals of potassium lithium tantalate niobate K 3 Li 2 (Nb 1−x Ta x ) 5 O 15 (KLTN) were grown by the Czochralski technique. The chemical analyses of the samples were performed by atomic absorption spectroscopy (AAS) and X‐ray fluorescence analysis (XRF). The element concentrations along the single crystals were measured by the electron microprobe analysis (EMPA) to clarify the segregation phenomena in the grown crystals. The elements distribution coefficients were also calculated. (© 2003 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)