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Importance of the Surface Electronic Structure in Heteroepitaxy
Wormeester, H. and Huger, E. and Bauer, E. (1998) Importance of the Surface Electronic Structure in Heteroepitaxy. Physical Review Letters, 81 (4). pp. 854-857. ISSN 0031-9007
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| Abstract: | Thin Au and Pd films were deposited on a Nb(001) surface covered with a monolayer (ML) of the respective metal and on a S-terminated Nb. Although these ML's have the same lateral periodicity as the substrate, the films grown on them have a different structure. Films deposited on the metal-terminated Nb surface have a structure determined by the geometric misfit between substrate and deposit (Au bcc, Pd hcp) while all films grown on the S-terminated Nb surface are fcc with (111) orientation. Photoelectron spectroscopy shows that S changes the electron density of states at the surface in such a way that the bonding of the metal is weakened, resulting in nonwetting. |
| Item Type: | Article |
| Copyright: | © 1998 The American Physical Society |
| Faculty: | Science and Technology (TNW) |
| Research Group: | |
| Link to this item: | http://purl.utwente.nl/publications/61210 |
| Official URL: | http://dx.doi.org/10.1103/PhysRevLett.81.854 |
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Metis ID: 128687