%A Baoan Liu(刘宝安), Lili Zhu(朱丽丽), Fafu Liu(刘发付), Xun Sun(孙洵), Xiping Chen(陈喜平), Lei Xie(谢雷), Yuanhua Xia(夏元华), Guangai Sun(孙光爱), Xin Ju(巨新) %T Effects of deuteration on the structure of NH4H2PO4 crystals characterized by neutron diffraction %0 Journal Article %D 2019 %J Chin. Phys. B %R 10.1088/1674-1056/28/1/016103 %P 16103-016103 %V 28 %N 1 %U {https://cpb.iphy.ac.cn/CN/abstract/article_121374.shtml} %8 2019-01-05 %X

A series of deuterated ammonium dihydrogen phosphate (DADP) crystals were grown and their structures were investigated by using powder neutron diffraction method. In the entire composition range, the deuterated level in the crystals is lower compared with the aqueous growth solution. The deuterium segregation coefficient in the crystals decreases with increasing deuterium content of the solution. The deuterium content in the NH4+ group is higher than that in H2PO4- group. In addition, the variations of lattice parameters are shown here.