| Jahr | 1995 |
| Autor(en) | König, G. and A. Lehmann and K. H. Rieder |
| Titel | He atom scattering studies of CaF2(110): surface properties and phonons |
| KIP-Gruppe(n) | F6 |
| Dokumentart | Paper |
| Keywords (angezeigt) | Atom-solid scattering and diffraction - elastic; Atom-solid scattering and diffraction - inelastic; CaF2; Low index single crystal surfaces; Phonons; Surface structure, morphology, roughness, and topography |
| Quelle | Surf. Sci. 331-333 (1995) 1430-1434 |
| doi | 10.1016/0039-6028(95)00200-6 |
| Abstract (en) | CaF2 is important for many practical applications. Various optical devices are made from fluoride or are coated with fluoride films. Epitaxially grown CaF2 is considered to be an appropriate insulator in microelectronics. The bulk cubic crystal is well characterized and understood, but the knowledge about the surface properties, as stability, defects and adsorption behaviour, in fact is less extensive. Therefore, He atom scattering studies of the CaF2(111) surface were performed. The preparation was done by cleavage in UHV. Diffraction spectra show a well ordered surface of a slightly better quality than polished and annealed ones. Time-of-flight measurements were made at primary energies between 21 and 26 meV. As a result, the dispersional relation of the pseudo Rayleigh mode was obtained throughout the entire surface Brillouin zone in reasonable agreement with recent calculations. |
| bibtex | @article{Koenig95,
author = {K{\"{o}}nig, G. and Lehmann, A. and Rieder, K. H.},
title = {He atom scattering studies of {C}a{F}$_2$(1\,1\,0): surface properties and phonons},
journal = {Surf. Sci.},
year = {1995},
volume = {331-333},
pages = {1430-1434},
doi = {10.1016/0039-6028(95)00200-6},
url = {http://www.sciencedirect.com/science/article/pii/0039602895002006}
} |
| URL | http://dx.doi.org/10.1016/0039-6028(95)00200- |
