Concentric dislocation loops with [0001] burgers vectors in ice single crystals doped with NH3
Concentric dislocation loops with [0001] burgers vectors in ice single crystals doped with NH3
复制标题
掺杂 NH3 的冰单晶中具有 [0001] Burgers 矢量的同心位错环
DOI：
10.1080/14786437108217043
复制
发表时间：
1971
影响因子：
1.6
通讯作者：
A. Higashi
中科院分区：
文献类型：
--
作者：
M. Oguro;A. Higashi
摘要用改进的布里奇曼法从熔体中生长了纯冰和掺杂NH3的冰单晶。获得的低位错密度（约102厘米2），使得有可能采取X-射线衍射形貌图显示许多同心位错环中的NH 3掺杂的冰以及偶尔的循环中的纯冰。这些环的起源归因于杂质的非均匀分布所产生的台阶的聚束效应。
Abstract Ice single crystals, both pure and doped with NH3, were grown from the melt by a modified Bridgman method. The low dislocation density obtained (approximately 102 cm 2) made it possible to take x-ray diffraction topographs showing many concentric dislocation loops in the NH3-doped ice as well as occasional loops in the pure ice. The origin of these loops is attributed to the bunching effect of the steps produced by non-uniform distribution of impurities.