Publications
Vibrational Properties of Nanograins and Interfaces in Nanocrystalline Materials
- Author(s)
- Svetoslav Stankov, Y.Z. Yue, Marcel Miglierini, Bogdan Sepiol, Ilya Sergueev, A Chumakov, L. Hu, P. Svec, Rudolf Rüffer
- Abstract
The vibrational dynamics of nanocrystalline Fe90Zr7B3 was studied at various phases of crystallization. The density of phonon states (DOS) of the nanograins was separated from that of the interfaces for a wide range of grain sizes and interface thicknesses. The DOS of the nanograins does not vary with their size and down to 2 nm grains still closely resembles that of the bulk. The anomalous enhancement of the phonon states at low and high energies originates from the DOS of the interfaces and scales linearly to their atomic
fraction.
- Organisation(s)
- Dynamics of Condensed Systems
- External organisation(s)
- European Synchrotron Radiation Facility ESRF, Slovak University of Technology in Bratislava, Shandong University, Aalborg University (AAU), Slovenian Academy of Sciences and Arts (SASA)
- Journal
- Physical Review Letters
- Volume
- 100
- No. of pages
- 4
- ISSN
- 0031-9007
- DOI
- https://doi.org/10.1103/PhysRevLett.100.235503
- Publication date
- 2008
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 1030 Physics, Astronomy
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/vibrational-properties-of-nanograins-and-interfaces-in-nanocrystalline-materials(272c8645-d769-42c6-b4ec-3c5882caf4d4).html