Growth and Structural Characterization of Rb3Yb2(PO4)3: A New Material for Laser and Nonlinear Optical Applications

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• 作者：J. J. Carvajal ; I. Parreu ; R. Solé ; X. Solans ; F. Dí ; az ; and M. Aguil&oacute
• 刊名：Chemistry of Materials
• 出版年：2005
• 出版时间：December 27, 2005
• 年：2005
• 卷：17
• 期：26
• 页码：6746 - 6754
• 全文大小：381K
• 年卷期：v.17,no.26(December 27, 2005)
• ISSN：1520-5002

文摘

We report the synthesis of a new stoichiometric Yb compound, Rb₃Yb₂(PO₄)₃, by high-temperaturesolution methods. This is the first material of the A₃^IB₂^III(X^VO₄)₃ family containing a lanthanide elementand the only one that shows optical activity. We resolved the structure of Rb₃Yb₂(PO₄)₃, which crystallizein the cubic system, space group of symmetry I2₁3 (a = 16.8700(10) Å, Z = 16), and studied its evolutionwith the temperature. The thermal expansion coefficient of Rb₃Yb₂(PO₄)₃ is mages/gifchars/alpha.gif" BORDER=0> = 8.94 × 10^-6 K^-1. Thiscompound melts incongruently at 1450 K. The second-harmonic generation efficiency of the Rb₃Yb₂(PO₄)₃,although limited as a result of the crystal not presenting birefringence, was at least similar to that ofpotassium dihydrogen phosphate.