Abstract
The atomic structure of the fivefold symmetric quasicrystal surface of Al70Pd21Mn9 was investigated by means of a dynamical low energy electron-diffraction analysis. Approximations are developed to address the high structural complexity of quasicrystals, yielding average layer-by-layer structural and compositional information. A mix of several relaxed bulklike terminations is found, consistently favoring dense Al-rich outermost atomic layers. These results can be understood in terms of principles known to govern surface structures of simpler, crystalline metals.
Original language | English |
---|---|
Pages (from-to) | 467-470 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 78 |
Issue number | 3 |
DOIs | |
State | Published - Jan 20 1997 |
Externally published | Yes |