Crystal structure and lattice dynamics of endotaxial FeSi2 nanowires
Kalt, J. 1; Sternik, M.; Krause, B.; Sergueev, I.; Mikolasek, M.; Merkel, D.; Bessas, D.; Sikora, O.; Vitova, T.
2; Göttlicher, J. 1; Steininger, R.; Jochym, P. T.; Ptok, A.; Leupold, O.; Wille, H.-C.; Chumakov, A. I.; Piekarz, P.; Parlinski, K.; Baumbach, T.;
2; Göttlicher, J. 1; Steininger, R.; Jochym, P. T.; Ptok, A.; Leupold, O.; Wille, H.-C.; Chumakov, A. I.; Piekarz, P.; Parlinski, K.; Baumbach, T.; Abstract (englisch):
The reduction of the dimensions of crystals to the nanometer length scale induces significant deviations in the phonon dispersions and phonon density of states (PDOS) of nanostructures compared to their bulk counterparts and novel vibrational phenomena emerge. I will present recent results of lattice dynamics study of alpha-phase FeSi2 endotaxial nanowires, epitaxially grown on Si(110), as a function of their size [1]. The experimentally obtained Fe-partial PDOS from nuclear inelastic scattering are comprehensively understood by the help of ab initio theory [2]
[1] J. Kalt, M. Sternik, B. Krause, I. Sergueev, M. Mikolasek, D.G. Merkel, D. Bessas, O. Sikora, T. Vitova, J. Göttlicher, R. Steininger, P.T. Jochym, A. Ptok, O. Leupold, H.-C. Wille, A.I. Chumakov, P. Piekarz, K. Parlinski, T. Baumbach and S. Stankov, Phys. Rev. B 102 (2020) 195414 [2] J. Kalt, M. Sternik, B. Krause, I. Sergueev, M. Mikolasek, D. Bessas, O. Sikora, T. Vitova, J. Göttlicher, R. Steininger, P.T. Jochym, A. Ptok, O. Leupold, H.-C. Wille, A. I. Chumakov, P. Piekarz, K. Parlinski, T. Baumbach and S. Stankov, Phys. Rev. B 101 (2020) 165406
[1] J. Kalt, M. Sternik, B. Krause, I. Sergueev, M. Mikolasek, D.G. Merkel, D. Bessas, O. Sikora, T. Vitova, J. Göttlicher, R. Steininger, P.T. Jochym, A. Ptok, O. Leupold, H.-C. Wille, A.I. Chumakov, P. Piekarz, K. Parlinski, T. Baumbach and S. Stankov, Phys. Rev. B 102 (2020) 195414 [2] J. Kalt, M. Sternik, B. Krause, I. Sergueev, M. Mikolasek, D. Bessas, O. Sikora, T. Vitova, J. Göttlicher, R. Steininger, P.T. Jochym, A. Ptok, O. Leupold, H.-C. Wille, A. I. Chumakov, P. Piekarz, K. Parlinski, T. Baumbach and S. Stankov, Phys. Rev. B 101 (2020) 165406
| Zugehörige Institution(en) am KIT | Institut für Nukleare Entsorgung (INE) Institut für Photonenforschung und Synchrotronstrahlung (IPS) |
| Publikationstyp | Vortrag |
| Publikationsdatum | 03.09.2021 |
| Sprache | Englisch |
| Identifikator | KITopen-ID: 1000168446 |
| Weitere HGF-Programme | 32.11.03 (POF IV, LK 01) Fundamental Scientific Aspects |
| Veranstaltung | 8th National Crystallographic Symposium (2021), Warna, Bulgarien, 01.09.2021 – 04.09.2021 |