Stigler, W. and Pavone, P. and Schröder, Ulrich and Fritsch, J. and Brusdeylins, G. and Wach, T. and Toennies, J. P. (1997) Manifestation of the dimer correlation in the phonon dispersion of Ge(001). PHYSICAL REVIEW LETTERS, 79 (6). pp. 1090-1093. ISSN 0031-9007, 1079-7114
Full text not available from this repository.Abstract
The phonon dispersion of the Ge(001) surface has been calculated using density-functional perturbation theory and local-coupling transfer, which is a novel method for modeling dynamical matrices of large-size superstructures, such as the c(4 x 2) and p(2 X 2) phases. Furthermore, the surface phonons have been determined by inelastic He atom scattering. The measured scattering intensities can be explained only if higher-order reconstructions are assumed, indicating a correlation of the surface dimers with local c(4 x 2) or p(2 X 2) symmetry in Ge(001) at room temperature.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | AB-INITIO; SURFACE; RECONSTRUCTION; SEMICONDUCTORS; DIFFRACTION; DYNAMICS |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 13 Apr 2023 06:23 |
| Last Modified: | 13 Apr 2023 06:23 |
| URI: | https://pred.uni-regensburg.de/id/eprint/50654 |
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