高等学校化学研究 ›› 2004, Vol. 20 ›› Issue (4): 411-416.
LAI X.1, MA C.1, K. J. Robert1, M. C. Miller2
LAI X.1, MA C.1, K. J. Robert1, M. C. Miller2
摘要: A novel crystal characterization instrument has been built up in which a combination of X-ray multiple diffraction and X-ray topography is applied to enabling the cross-correlation between micro-crystallographic symmetry and its spatial dependence in relation to lattice defects.This facility is used to examine, in a selfconsistent manner, growth sector-dependant changes to both the crystallographic structure and the lattice defects associated with the action of habit-modifying additives in a number of representative crystal growth systems.In addition, the new instrument can be used to probe micro-crystallographic aspects (such as distortion to crystal symmetry) and relate these in a spatially resolved manner to the crystal defect structure in crystals doped with known habit modifiers.