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Melting of Al Induced by Laser Excitation of 2p Holes

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons144494

Cheenicode Kabeer,  Fairoja
Theory, Fritz Haber Institute, Max Planck Society;
Theoretische Physik, Universität Kassel and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT);

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Zitation

Rosandi, Y., Cheenicode Kabeer, F., Cherednikov, Y., Zijlstra, E. S., Garcia, M. E., Inogamov, N. A., et al. (2015). Melting of Al Induced by Laser Excitation of 2p Holes. Materials Research Letters, 3(3), 149-155. doi:10.1080/21663831.2015.1033564.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-002A-2D07-5
Zusammenfassung
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.