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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Wehinger, Björn Rumiantsev, Alexander Chernyshov, Dmitry Piccolboni, Giuseppe Refson, Keith Ivanov, Alexandre Krisch, Michael Bosak, Alexeï |
| Description | Country affiliation: France Author Affiliation: Wehinger B ( European Synchrotron Radiation Facility, BP 220 F-38043 Grenoble Cedex 9, France.) |
| Abstract | The lattice dynamics of the metallic tin ß and γ polymorphs has been studied by a combination of diffuse scattering, inelastic x-ray scattering and density functional perturbation theory. The non-symmorphic space group of the ß-tin structure results in unusual asymmetry of thermal diffuse scattering. Strong resemblance of the diffuse scattering intensity distribution in ß and γ-tin were observed, reflecting the structural relationship between the two phases and revealing the qualitative similarity of the underlying electronic potential. The strong influence of the electron subsystem on inter-ionic interactions creates anomalies in the phonon dispersion relations. All observed features are described in great detail by the density functional perturbation theory for both ß- and γ-tin at arbitrary momentum transfers. The combined approach delivers thus a complete picture of the lattice dynamics in harmonic description. |
| ISSN | 09538984 |
| e-ISSN | 1361648X |
| Journal | Journal of Physics: Condensed Matter |
| Issue Number | 11 |
| Volume Number | 26 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2014-03-19 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | Open |
| Subject Keyword | Electrons Phonons Tin Chemistry X-ray Diffraction Models, Molecular Molecular Dynamics Simulation Discipline Condensed Matter Physics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Materials Science |
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