Li, Jaime A. and Akhadov, E. A. and Baker, Jeff and Boatner, L. A. and Bonart, D. and Flaherty, F. A. and Fritsch, J. and Safron, S. A. and Schroeder, U. and Skofronick, J. G. and Trelenberg, T. W. and Van Winkle, D. H. (2001) Observation of a metastable periodic structure for the (001) surface of KTaO3 after cleaving in situ. PHYSICAL REVIEW LETTERS, 86 (21). pp. 4867-4870. ISSN 0031-9007
Full text not available from this repository.Abstract
Helium atom diffraction experiments carried out under ultrahigh vacuum conditions on a freshly cleaved (001) surface of KTaO3 reveal metastable features which decay over a period of several hours. The initial He diffraction pattern contains large scattering intensity satellite peaks very close to the specular reflection beam. As time from cleaving elapses, the satellite intensities diminish virtually to zero while the specular intensity increases, and the diffraction pattern evolves into one consistent with the (1 X 1) bulk termination surface. The data are compared with model calculations for scattering fi om a series of terraces at two heights with a distribution of terrace lengths [Surf. Sci. 384, 15 (1997)].
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | PHONON DISPERSION-CURVES; HELIUM-ATOM SCATTERING; CRYSTAL-SURFACES; STABILITY; DYNAMICS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 25 Jan 2022 15:46 |
| Last Modified: | 25 Jan 2022 15:46 |
| URI: | https://pred.uni-regensburg.de/id/eprint/41427 |
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