O. Srivastava, A. Verma
1962
Citations
0
Influential Citations
12
Citations
Journal
Zeitschrift Fur Kristallographie
Abstract
A 22-layered new polytype of cadmium iodide, designated as 22H c , with unit cell dimensions a = 4.24 A , c = 75.18 A has been discovered. The detailed structure of the polytype has been worked out. It is shown that this polytype is based on a 2H ideal structure. The polytype 22H c is so far the largest of the cadmium iodide polytypes whose detailed structure is known. The growth of the polytype has been discussed in terms of screw-dislocation theory and the difficulties which arise in this are pointed out.