采用传统降温法生长了一系列的 K (H1-xDx)2PO4晶体。粉末X射线衍射(XRD)证明氘化后晶体的对称性并没有发生改变,晶胞参数a 随氘含量的增加而增大,参数c 则小幅度增大。对晶体的高分辨 X 射线衍射研究,结果表明 KDP-DKDP 混晶中,D取代部分的 H 原子对晶体的结晶完整性影响较小。
A serials of K(H1-xDx)2PO4 crystals were grown by using traditional method from deuterated solu-tions.From the results of powder X-ray diffraction (XRD),it shows that the no changes occurred on symmetry of structure in K(H1-xDx)2PO4 crystals,while lattice parameter a increases with a increase of deuterium con-tent of crystal.High resolution XRD was taken to characterize crystalline perfection.It was indicated that crys-talline perfection was destroyed slightly by the replacement of partial H atoms by D atoms in KDP-DKDP mixed crystals.
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