Atomic Structure of Submonolayer NaCl Grown on Ag(110) SurfaceClick to copy article linkArticle link copied!
- Khalid Quertite
- Karima Lasri
- Hanna Enriquez
- Andrew J. Mayne
- Azzedine Bendounan
- Gérald Dujardin
- Nicolas Trcera
- Walter Malone
- Abdallah El Kenz
- Abdelilah Benyoussef
- Abdelkader Kara
- Hamid Oughaddou
Abstract
We report results on the growth of an NaCl film on Ag(110) under ultrahigh vacuum conditions. At room temperature, low-energy electron diffraction and scanning tunneling microscopy show that the NaCl film forms a (4×1) superstructure. At RT, the film consists of small-sized islands that coalesce into larger islands at 410 K. These large islands preserve the (4×1) superstructure and cover the entire surface. The apparent heights obtained from the STM images show that the initial thickness of the NaCl islands is one atomic layer, and they present a very small height corrugation. The density functional theory calculations, with and without the inclusion of van der Waals effects, confirm the coexistence of two domains in agreement with the observed structure.
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