Abstract
The structure of the tenfold surface of decagonal Al-Ni-Co was studied using low-energy electron diffraction (LEED) and scanning tunneling microscopy (STM). The surface region is a relaxed truncated bulk structure, having the same composition as the bulk. The outermost layer spacing is contracted by 10% relative to the bulk interlayer spacing, while the next layer spacing is expanded by 5%. A small degree of intralayer rumpling was observed within each layer. There is a one-to-one correspondence between protrusions observed in the STM images and a subset of atoms in the model structure, indicating that in-plane reconstruction is minimal.
Original language | English |
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Article number | 153404 |
Pages (from-to) | 153404-1-153404-4 |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 69 |
Issue number | 15 |
DOIs | |
State | Published - Apr 2004 |
Externally published | Yes |