ISSN:
1089-7550
Quelle:
AIP Digital Archive
Thema:
Physik
Notizen:
The screw dislocations with Burgers vector a〈001〉 and a〈110〉 in Ba(NO3)2 crystals have been studied by birefringence topography. In combination with the results obtained previously [C.-Z. Ge, N.-B. Ming, K. Tsukamoto, K. Maiwa, and I. Sunagawa, J. Appl. Phys. 69, 7556 (1991); C.-Z. Ge, H.-W. Wang, and N.-B. Ming, ibid. 74, 139 (1993)], it has been shown that not only a〈111〉, but also a〈110〉 screw dislocations viewed end-on are visible; however, a〈100〉 screw dislocation viewed end-on are always invisible in barium nitrate crystals. The intensity distributions and extinction rules of birefringence images of a〈110〉 screw dislocation viewed end-on are determined both experimentally and theoretically. © 1995 American Institute of Physics.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1063/1.360659
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