A. Usikov, V.V. Ratnikov, R. Kyutt, W. V. Lundin, B. Pushnyi, N. M. Shmidt, M.P. Scheglov
Ioffe Physical-Technical Institute
0), (20
0), and (114) reflections
has been measured by means of double- and triple -crystal diffractometry with
Mo K
1 and Cu K1 radiation under conditions
of symmetrical and asymmetrical Bragg- and Laue-geometry. In our experiments a
non-coplanar geometry was also applied. On the basis of the performed studies,
five independent components of the tensor of microdistortion were evaluated and
the average grain-size in two directions was determined. The type, position,
and density of dislocations were established as well. The role of dislocations
in strain relaxation and their influence on the optical and electrical
properties are discussed.© 1998-2000 The Materials Research Society