Consecutive
Rotation of Crystallographic Orientation in Lateral Growth
Mu Wang, Da-Wei Li, Da-Jun Shu, Piet Bennema, Yan-Wei Mao, Wei Pan, and
Nai-Ben Ming
Abstract:
A consecutive rotation of crystallographic orientation has been
observed in lateral crystallization of NH4Cl on a glass substrate,
which induces a periodic distribution of faceted and roughened regions
on the surface of a crystallite aggregate. Experimental observation
indicates that this phenomenon derives from the asymmetric surface
energies at the growth front, which deform the nascent nucleus and tilt
the crystallographic orientation in the nucleation-mediated layered
growth. We suggest that this effect is significant for a class of
lateral growth where nucleation plays a dominate role.