Ultrafast band-structure variations induced by fast Au ions in BeO
Apstrakt
Auger-electron spectra associated with Be atoms in the pure metal lattice and in an oxide have been investigated for 1.8 MeV/u Au-129(41+) ions and 2.7 keV primary electrons. The excitation and local energy transfer by such fast primary particles in solids is dominated by electronic processes. The electron-induced spectrum is compared to calculated band-structure results and it is relatively well understood. For the heavy-ion case, however, we observe a significant variation of the Auger electron spectrum, related to a variation of the electronic band structure. This spectrum points to a formation of a metal-like meta-stable electronic density of states. (c) 2010 Elsevier B.V. All rights reserved.
Ključne reči:
Auger-electron emission / Ion-track formation / High electronic excitation density / Short-time electron dynamics / Band-structure variation / Wide-gap insulator / MeltingIzvor:
Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 2011, 269, 9, 959-963Finansiranje / projekti:
- Alexander von Humboldt Foundation, CNPq, CAPES
DOI: 10.1016/j.nimb.2010.11.085
ISSN: 0168-583X; 1872-9584
WoS: 000290191800035
Scopus: 2-s2.0-79953732316
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Schiwietz, G. AU - Czerski, K. AU - Grande, P. L. AU - Koteski, Vasil J. AU - Staufenbiel, F. PY - 2011 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4302 AB - Auger-electron spectra associated with Be atoms in the pure metal lattice and in an oxide have been investigated for 1.8 MeV/u Au-129(41+) ions and 2.7 keV primary electrons. The excitation and local energy transfer by such fast primary particles in solids is dominated by electronic processes. The electron-induced spectrum is compared to calculated band-structure results and it is relatively well understood. For the heavy-ion case, however, we observe a significant variation of the Auger electron spectrum, related to a variation of the electronic band structure. This spectrum points to a formation of a metal-like meta-stable electronic density of states. (c) 2010 Elsevier B.V. All rights reserved. T2 - Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms T1 - Ultrafast band-structure variations induced by fast Au ions in BeO VL - 269 IS - 9 SP - 959 EP - 963 DO - 10.1016/j.nimb.2010.11.085 ER -
@article{ author = "Schiwietz, G. and Czerski, K. and Grande, P. L. and Koteski, Vasil J. and Staufenbiel, F.", year = "2011", abstract = "Auger-electron spectra associated with Be atoms in the pure metal lattice and in an oxide have been investigated for 1.8 MeV/u Au-129(41+) ions and 2.7 keV primary electrons. The excitation and local energy transfer by such fast primary particles in solids is dominated by electronic processes. The electron-induced spectrum is compared to calculated band-structure results and it is relatively well understood. For the heavy-ion case, however, we observe a significant variation of the Auger electron spectrum, related to a variation of the electronic band structure. This spectrum points to a formation of a metal-like meta-stable electronic density of states. (c) 2010 Elsevier B.V. All rights reserved.", journal = "Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms", title = "Ultrafast band-structure variations induced by fast Au ions in BeO", volume = "269", number = "9", pages = "959-963", doi = "10.1016/j.nimb.2010.11.085" }
Schiwietz, G., Czerski, K., Grande, P. L., Koteski, V. J.,& Staufenbiel, F.. (2011). Ultrafast band-structure variations induced by fast Au ions in BeO. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 269(9), 959-963. https://doi.org/10.1016/j.nimb.2010.11.085
Schiwietz G, Czerski K, Grande PL, Koteski VJ, Staufenbiel F. Ultrafast band-structure variations induced by fast Au ions in BeO. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 2011;269(9):959-963. doi:10.1016/j.nimb.2010.11.085 .
Schiwietz, G., Czerski, K., Grande, P. L., Koteski, Vasil J., Staufenbiel, F., "Ultrafast band-structure variations induced by fast Au ions in BeO" in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 269, no. 9 (2011):959-963, https://doi.org/10.1016/j.nimb.2010.11.085 . .