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首页> 外文期刊>Journal of Crystal Growth >Growth and characterizations of ZnO-doped near-stoichiometric LiNbO3 crystals by zone-leveling Czochralski method
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Growth and characterizations of ZnO-doped near-stoichiometric LiNbO3 crystals by zone-leveling Czochralski method

机译：ZnO掺杂的近化学计量LiNbO3晶体的生长和特征化

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摘要

ZnO-doped near-stoichiometric lithium niobate (SLN) crystals were grown by the zone-leveling Czochralski (ZLCz) technique. The crystal was pulled from a Li-rich (60 mol% of Li2O) solution having an SLN solid supplied from below in a slender platinum crucible. The segregation coefficient of ZnO was found being about 0.58, and this could cause dopant segregation along the grown crystal. However, with a higher ZnO concentration in the solution zone, the composition homogeneity along grown crystal could be achieved. The properties of SLN at different zinc concentrations were measured, and the Curie temperature and cutoff wavelength showed a transition with the zinc concentration at about 1 mol%. Based on the reported mechanism, the anti-site defects of the grown crystals were about at the same concentration. (c) 2005 Elsevier B.V. All rights reserved.
机译：ZnO掺杂的近化学计量的铌酸锂（SLN）晶体是通过区域整平切克劳斯基（ZLCz）技术生长的。在细长的铂坩埚中，从下方供给具有SLN固体的富含Li的（Li2O为60 mol％）溶液提取晶体。发现ZnO的偏析系数约为0.58，这可能导致掺杂剂沿生长的晶体偏析。然而，在溶液区中具有较高的ZnO浓度时，可以实现沿生长晶体的成分均匀性。测量了在不同锌浓度下SLN的性质，并且居里温度和截止波长在锌浓度为约1mol％时显示出转变。根据已报道的机理，生长晶体的抗位缺陷大约在相同浓度下。 （c）2005 Elsevier B.V.保留所有权利。

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