TY - GEN
T1 - Growth-twinning in zincblende crystals
T2 - Proceedings of the 1998 International Conference on Indium Phosphide and Related Materials
AU - Chung, H.
AU - Dudley, M.
AU - Larson, D. J.
AU - Prasad, V.
AU - Hurle, D. T.J.
AU - Bliss, D. F.
PY - 1998
Y1 - 1998
N2 - Synchrotron White Beam X-ray Topography (SWBXT) [1,2] combined with chemical etching and Nomarski optical microscopy have been employed to investigate the phenomenon of twinning in sulfur doped, LEC grown 〈100〉 InP single crystals. Results confirm the general prediction of Hurle [3,4] that twins nucleate in regions where {111} edge facets are anchored to the three phase boundary (TPB), and that twinning produces a {111} external facet on the shoulder region of the crystal. However, some specific aspects of Hurle's theory were corrected by this experimental study. A detailed x-ray examination revealed the appearance of a {115} external shoulder facet immediately before the occurrence of twinning. The location at which the twin nucleates is the point where the {115} shoulder facet is converted to a {111} external shoulder facet. This twinning mechanism allows for a reduction in free energy by converting the facet from a {115} to a {111} plane.
AB - Synchrotron White Beam X-ray Topography (SWBXT) [1,2] combined with chemical etching and Nomarski optical microscopy have been employed to investigate the phenomenon of twinning in sulfur doped, LEC grown 〈100〉 InP single crystals. Results confirm the general prediction of Hurle [3,4] that twins nucleate in regions where {111} edge facets are anchored to the three phase boundary (TPB), and that twinning produces a {111} external facet on the shoulder region of the crystal. However, some specific aspects of Hurle's theory were corrected by this experimental study. A detailed x-ray examination revealed the appearance of a {115} external shoulder facet immediately before the occurrence of twinning. The location at which the twin nucleates is the point where the {115} shoulder facet is converted to a {111} external shoulder facet. This twinning mechanism allows for a reduction in free energy by converting the facet from a {115} to a {111} plane.
UR - https://www.scopus.com/pages/publications/0032287779
U2 - 10.1109/ICIPRM.1998.712407
DO - 10.1109/ICIPRM.1998.712407
M3 - Conference contribution
AN - SCOPUS:0032287779
SN - 0780342208
T3 - Conference Proceedings - International Conference on Indium Phosphide and Related Materials
SP - 84
EP - 87
BT - Conference Proceedings - International Conference on Indium Phosphide and Related Materials
Y2 - 11 May 1998 through 15 May 1998
ER -