Scanning tunneling microscopy of decagonal and icosahedral quasicrystals
- 1 March 1991
- journal article
- research article
- Published by American Vacuum Society in Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures
- Vol. 9 (2) , 867-873
- https://doi.org/10.1116/1.585485
Abstract
The scanning tunneling microscope is used under ultrahigh vacuum conditions to image the clean surfaces of decagonal Al65Co20Cu15 and icosahedral Al65Cu20Fe15. The tunneling images show nonperiodic surfaces whose features are adequately described by pentagonal quasilattice for the case of the decagonal material, suggesting that a tiling model accounts for the surface features. The scanning tunneling microscope measurements of the scale of surface features is in good agreement with high resolution x-ray diffraction measurements of the bulk.Keywords
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