Ding, Y (reprint author), Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China.
Article; Proceedings Paper
The growth defects in solution grown L-arginine phosphate monohydrate (LAP) organic crystals were investigated by white-beam synchrotron radiation topography. The crystals were cut into slices in different directions. The transmission topographies showed the dislocations, growth striations, growth sector boundaries and inclusions in both (100) slice and (001) slice with different reflection. We also presented the contrast of microbe, which is a severe problem in LAP crystal growth. The topography with 015 reflection showed the dislocations originated from the surface of the seed and following the (00 1) and (100) direction, and the Burgers vectors of those dislocations were determined. The dynamic images of growth sector boundaries were also showed clearly.