Anomalous multilayer relaxation of Pd{001}
- 15 December 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 42 (17), 11348-11351
- https://doi.org/10.1103/physrevb.42.11348
Abstract
A low-energy electron-diffraction intensity analysis of a clean Pd{001} surface finds the first interlayer spacing expanded by about 3% and the second interlayer spacing slightly contracted by about 1% with respect to the bulk value (1.945 Å). These results contradict the trend usually observed or theoretically predicted on fcc {001} surfaces, where the first relaxation is a compression and the second is an expansion. Possible origins of this behavior are suggested.Keywords
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