Anisotropic glass freezing in rubidium/ammonium dihydrogen phosphate mixed crystal and its deuterated analogue
作者:J H Ko、B G Kim、J J Kim、H Fujimori、S Miyajima
DOI:10.1088/0953-8984/9/21/007
日期:1997.5.26
Anisotropic glass freezing has been studied via dielectric measurements in the dipole glass systems of rubidium/ammonium dihydrogen phosphate RADP(x) and its perdeuterated analogue D-RADP(x), where x denotes the ammonium concentration. The glass freezing temperatures for a-cut and c-cut crystals are measured, and found to reveal very small anisotropy in the protonated sample of RADP(0.43) but a considerable
已经通过铷/磷酸二氢铵 RADP(x) 及其过氘类似物 D-RADP(x) 的偶极玻璃系统中的介电测量研究了各向异性玻璃冷冻,其中 x 表示铵浓度。测量了 a-cut 和 c-cut 晶体的玻璃冻结温度,发现在质子化的 RADP(0.43) 样品中显示出非常小的各向异性,但在 D-RADP(0.40) 的氘化样品中显示出相当大的低频各向异性. 与 D-RADP(0.40) 晶体的 a 轴冻结温度相比,沿 c 轴观察到更高的玻璃冻结温度。这符合聚类模型理论对 的预测。D-RADP(0.