Abstrak RSS

Melting of Al Induced by Laser Excitation of 2p Holes

Melting of Al Induced by Laser Excitation of 2p Holes
Yudi Rosandi, Fairoja Cheenicode Kabeer, Yaroslav Cherednikov, Eeuwe S. Zijlstra, Martin E. Garcia, Nail A. Inogamov, Herbert M. Urbassek
Universitas Padjadjaran, Materials Research Letters 3:3, 149-155, 2015, Published by Taylor & Francis, DOI:10.1080/21663831.2015.1033564, ISSN: (Print) 2166-3831 (Online) Journal homepage: http://www.tandfonline.com/loi/tmrl20
Bahasa Inggris
Universitas Padjadjaran, Materials Research Letters 3:3, 149-155, 2015, Published by Taylor & Francis, DOI:10.1080/21663831.2015.1033564, ISSN: (Print) 2166-3831 (Online) Journal homepage: http://www.tandfonline.com/loi/tmrl20
, , ,

Novel photon sources—such as XUV- or X-ray lasers—allow to selectively excite core excitations in materials. We study theresponse 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 ?nd that the melting dynamics after core-hole excitation is dominated by classical electron–phonon dynamics. The e?ects 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.

Download: .Full Papers