MORPHOLOGY OF Y3FE5O12 SINGLE-CRYSTALS GROWN FROM HIGH-TEMPERATURE SOLUTION
MORPHOLOGY OF Y3FE5O12 SINGLE-CRYSTALS GROWN FROM HIGH-TEMPERATURE SOLUTION
复制标题
DOI：
10.1016/0022-0248(93)90007-j
复制
发表时间：
1993-11-01
影响因子：
1.8
通讯作者：
CHUNG, SJ
中科院分区：
文献类型：
--
作者：
PARK, HM;SEO, KI;CHUNG, SJ
采用慢冷法和温度梯度输运法从高温溶液中生长出YIG单晶。研究了熔剂组成、冷却速度、生长温度和转速对YIG形貌的影响。在高粘度熔剂成分中，即使在较低的冷却速度下，也以{211}面为主；而在粘度较低的熔剂成分中，即使在较快的冷却速度下，也以{110}面为主。在较高的生长温度和旋转速度下，以{110}面为主。根据两面的几何关系计算了{211}面相对于{110}面的相对生长速率。通过反复的系统生长实验，研究了相对生长速率对其形态的影响。通过对实验图的外推，得到了相对生长速率与生长条件，即冷却速率和熔剂组成之间的关系。在一个固定的冷却速度下，某一点的相对生长速度估计与熔剂组成无关。
Single crystals of YIG were grown from high temperature solutions by the slow cooling method and by the temperature gradient transport method. The morphological change of YIG depending on flux composition, cooling rate, growth temperature and rotation speed was investigated. In highly viscous flux composition, even at a lower cooling rate, the {211} faces developed dominantly, but in a less viscous flux composition, even at a relatively fast cooling rate, the {110} faces were dominant. At a higher growth temperature and rotation speed, the {110} faces were dominantly developed. Relative growth rates of the {211} faces against the {110} faces were calculated from the geometrical relation of the two faces. The morphological change caused by the relative growth rates was investigated through repeated systematic growth experiments. The correlation between the relative growth rate and the growth conditions, i.e., the cooling rate and the flux composition, was derived from the extrapolation of the experimental plotting. The relative growth rate at a point was estimated to be independent of flux composition at a fixed cooling rate.