219 citations · 1k across the 42 of their papers we have counts for
7 papers · 1 filter
Optical response of small closed-shell sodium clusters
George Pal, Georgios Lefkidis, Hans Christian Schneider +1
Absorption spectra of closed-shell Na_2, Na_3+, Na_4, Na_5+, Na_6, Na_7+, and Na_8 clusters are calculated using a recently implemented conserving linear response method. In the fr…
Optical absorption spectra of finite systems from a conserving Bethe-Salpeter equation approach
George Pal, Yaroslav Pavlyukh, Wolfgang Hübner +1
We present a method for computing optical absorption spectra by means of a Bethe-Salpeter equation approach, which is based on a conserving linear response calculation for electron…
Ultrafast demagnetization of ferromagnetic transition metals: The role of the Coulomb interaction
Michael Krauss, Tobias Roth, Sabine Alebrand +4
The Elliott-Yafet mechanism is arguably the most promising candidate to explain the ultrafast demagnetization dynamics in ferromagnetic transition metals on timescales on the order…
Electron spin relaxation in n-type InAs quantum wires
C. Lü, H. C. Schneider, M. W. Wu
We investigate the electron spin relaxation of -type InAs quantum wires by numerically solving the fully microscopic kinetic spin Bloch equations with the relevant scattering ex…
Conserving quasiparticle calculations for small metal clusters
George Pal, Yaroslav Pavlyukh, Hans Christian Schneider +1
A novel approach for GW-based calculations of quasiparticle properties for finite systems is presented, in which the screened interaction is obtained directly from a linear respons…
Ultrafast Spin Dynamics in Optically Excited Bulk GaAs at Low Temperatures
M. Krauss, R. Bratschitsch, Z. Chen +2
This paper presents a study of electron spin dynamics in bulk GaAs at low temperatures for elevated optical excitation conditions. Our time-resolved Faraday rotation measurements y…