This title appears in the Scientific Report :
2007
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevLett.98.097401 in citations.
Dynamics of the Self-Energy of the Gd(0001) Surface State Probed by Femtosecond Photoemission Spectroscopy
Dynamics of the Self-Energy of the Gd(0001) Surface State Probed by Femtosecond Photoemission Spectroscopy
Transient changes of the complex self-energy of the 5d(z)(2) surface state on Gd(0001) after intense optical excitation are investigated by femtosecond time-resolved photoemission. We observe an ultrafast (< 100 fs) broadening of the linewidth due to e-e scattering followed by a decrease of the b...
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Personal Name(s): | Loukakos, P. A. |
---|---|
Lisowski, M. / Bihlmayer, G. / Blügel, S. / Wolf, M. / Bovensiepen, U. | |
Contributing Institute: |
Center of Nanoelectronic Systems for Information Technology; CNI Jülich-Aachen Research Alliance - Simulation Sciences; JARA-SIM JARA-FIT; JARA-FIT Quanten-Theorie der Materialien; IFF-1 |
Published in: | Physical review letters, 98 (2007) S. 097401 |
Imprint: |
College Park, Md.
APS
2007
|
Physical Description: |
097401 |
DOI: |
10.1103/PhysRevLett.98.097401 |
Document Type: |
Journal Article |
Research Program: |
Grundlagen für zukünftige Informationstechnologien |
Series Title: |
Physical Review Letters
98 |
Subject (ZB): | |
Link: |
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Publikationsportal JuSER |
Transient changes of the complex self-energy of the 5d(z)(2) surface state on Gd(0001) after intense optical excitation are investigated by femtosecond time-resolved photoemission. We observe an ultrafast (< 100 fs) broadening of the linewidth due to e-e scattering followed by a decrease of the binding energy due to thermal expansion of the lattice. In addition, we resolve a periodic breathing of the band structure which originates from a coherent phonon. An amplitude of 1 pm is derived from the binding energy shift upon lattice displacement calculated by density functional theory. |