Structure refinement of nonlinear optical material K0.97Ti0.97Nb0.03OPO4

被引：10

作者：

Moorthy, SG

Kumar, FJ

Subramanian, C

Bocelli, G

Ramasamy, P ^{[1
]}

机构：

[1] Anna Univ, Ctr Crystal Growth, Chennai 600025, India

[2] CNR, Ctr Studio Strutturist Diffrattometr, I-43100 Parma, Italy

来源：

MATERIALS LETTERS | 1998年 / 36卷 / 5-6期

关键词：

potassium titanyl phosphate; niobium substitution; flux method; X-ray diffraction analysis; structure refinement; lattice parameters; nonlinear optical material;

D O I：

10.1016/S0167-577X(98)00054-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

KTP crystals doped with niobium were grown by spontaneous crystallization using K6P4O13 as the solvent. Crystal structure of K0.97Ti0.97Nb0.03OPO4 was refined by using single crystal X-ray diffraction data. The structure is orthorhombic (space group Pna2(1)) with cell parameters a = 12.816(3) Angstrom, b = 6.403(2) Angstrom, c = 10.580(3) Angstrom. Substitution of Ti4+ by Nb5+ was charge compensated by formation of potassium vacancies in the K(1) site. Growth layers observed on the surface of the crystals using optical microscope indicated two-dimensional growth mechanism. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：266 / 270

页数：5

共 16 条

[1] SYNTHESIS AND CHARACTERIZATION OF SODIUM TITANIUM PHOSPHATES, NA4(TIO)(PO4)2, NA(TIO)PO4, AND NATI2(PO4)3 [J].