Atomic Force Microscopy Studies on {101} Surfaces of L-arginine Trifluoroacetate Single Crystals
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- 作者：Xiaojing Liu ; Zeyan Wang ; Guanghui Zhang ; Guangwei Yu ; Xinqiang Wang ; Aidong Duan ; Jiandong Fan ; Dong Xu
- 刊名：Journal of Physical Chemistry C
- 出版年：2007
- 出版时间：September 27, 2007
- 年：2007
- 卷：111
- 期：38
- 页码：14165 - 14169
- 全文大小：617K
- 年卷期：v.111,no.38(September 27, 2007)
- ISSN：1932-7455
文摘
The morphology of the {101} surface of L-arginine trifluoroacetate (abbreviated as LATF) crystals has beeninvestigated by ex situ atomic force microscopy (AFM). Growth of LATF proceeds by two-dimensionalnucleation to form "stacks" of islands. Nucleation on the wider step terraces results in the overhang morphologyof steps. Step patterns indicate the occurrence of impurity pinning. The hollow cavities elongate along the<010> direction, which are attributed to the characteristic structure of the LATF crystal. It is believed thatthese cavities can lead to extra stress which will affect the arrangement of the lattice and further cause structuralmismatch.