Kinetic roughening of a ZnO grain boundary

Sung Bo Lee; Young-Min Kim; Dong-Su Ko; Tae-Young Ahn; Young-Woon Kim; Jucheol Park
May 2010
Applied Physics Letters;5/10/2010, Vol. 96 Issue 19, p191906
Academic Journal
Using a model ZnO bicrystal, we examine grain boundary kinetics by high-resolution transmission electron microscopy. The grain boundary undergoes a transition from atomically stepped to undulating appearances with increasing driving force for migration at a given temperature, producing clear evidence that grain boundaries undergo kinetic roughening.


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