Compositionally induced phase transitions and nonlinear optic response in ABCO4 crystal solution phases ALiPO4 (A = Sr, Ba, Pb)
Compositionally induced phase transitions and nonlinear optic response in ABCO4 crystal solution phases ALiPO4 (A = Sr, Ba, Pb)
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DOI：
10.1021/cm00029a004
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发表时间：
1993-05
影响因子：
8.6
通讯作者：
C. S. Liang;H. Eckert;T. E. Gier;G. Stucky
中科院分区：
文献类型：
--
作者：
C. S. Liang;H. Eckert;T. E. Gier;G. Stucky
8.209（2）A.通过XRD、SHG测量和31 P MAS NMR确定了这些相在相互阳离子取代后的固-固溶解度区域。31 P各向同性化学位移被证明是敏感的阳离子分布效应和结构相变。31 P MAS NMR光谱还显示，对于纯BaLiP 〇 4和SrLiP 〇 4两者，仅存在一种晶体学上不同的磷点。通过使固态溶液相接近结构相变，使SHG强度最大化，其中任一纯相的SHG响应的变化超过一个数量级。
8.209 (2) A. The regions of solid-solid solubility for these phases upon mutual cation substitution are defined by XRD, SHG measurements, and 31P MAS NMR. 31P isotropic chemical shifts are shown to be sensitive to cation distribution effects and to structural phase changes. 31P MAS NMR spectroscopy also shows that for bothpure BaLiP04 and SrLiP04 there is only one crystallographically distinct phosphorussite. SHG intensities are maximized by bringing the solid-state solution phases close to structural phase transitions, with changes of more than an order of magnitude from the SHG responses of either of the pure phases.