Aufsatz in einer Fachzeitschrift
Melting of Al Induced by Laser Excitation of 2p Holes
Details zur Publikation
Autor(inn)en: | Rosandi, Y.; Cheenicode Kabeer, F.; Cherednikov, Y.; Zijlstra, E.; Garcia, M.; Inogamov, N.; Urbassek, H. |
Verlag: | Taylor & Francis Open |
Publikationsjahr: | 2015 |
Zeitschrift: | Materials Research Letters |
Seitenbereich: | 149-155 |
Jahrgang/Band : | 3 |
Erste Seite: | 149 |
Letzte Seite: | 155 |
Seitenumfang: | 7 |
ISSN: | 2166-3831 |
DOI-Link der Erstveröffentlichung: |
Zusammenfassung, Abstract
Novel photon sources-such as XUV-or X-ray lasers-allow to selectively excite core excitations in materials. We study the response of a simple metal, Al, to the excitation of 2p holes using molecular dynamics simulations. During the lifetime of the holes, the interatomic interactions in the slab are changed; we calculate these using WIEN2k. We find that the melting dynamics after core-hole excitation is dominated by classical electron-phonon dynamics. The effects of the changed potential surface for excited Al atoms occur on the time scale of 100 fs, corresponding to the Debye time of the lattice.
Novel photon sources-such as XUV-or X-ray lasers-allow to selectively excite core excitations in materials. We study the response of a simple metal, Al, to the excitation of 2p holes using molecular dynamics simulations. During the lifetime of the holes, the interatomic interactions in the slab are changed; we calculate these using WIEN2k. We find that the melting dynamics after core-hole excitation is dominated by classical electron-phonon dynamics. The effects of the changed potential surface for excited Al atoms occur on the time scale of 100 fs, corresponding to the Debye time of the lattice.
Schlagwörter
Al, Laser Materials Processing, Molecular Dynamics, XUV Irradiation
