@inbook{24979,
  abstract     = {{The ultrafast dynamics of optical excitations in semiconductors and semiconductor nanostructures can be computed on a microscopic theoretical basis using the semiconductor Bloch equations. This set of equations allows one to nonperturbatively evaluate light-field-induced intraband and interband excitations and is also well suited for the analysis of many-body effects such as excitonic resonances and carrier-carrier and carrier-phonon scattering processes. In this article we start with a description of an experimental observation of coherent spin photocurrents, then we briefly introduce the theoretical approach and review some results of our theory concerning the microscopic description of the ultrafast coherent optical generation and the temporal decay of charge and spin currents in semiconductor nanostructures. The computed transients show an enhanced damping of the spin current relative to the charge current as a consequence of Coulomb scattering between carriers with opposite spin. The influence of quantum kinetic memory effects on the dynamics of the photocurrents is analyzed by evaluating the scattering terms beyond the Markov approximation.}},
  author       = {{Meier, Torsten and Duc, Huynh Thanh and Vu, Quang Tuyen and Pasenow, Bernhard and Hübner, Jens and Chatteryee, Sangam and Rühle, Wolfgang W. and Haug, Hartmut and Koch, Stephan W.}},
  booktitle    = {{Advances in Solid State Physics}},
  isbn         = {{978-3-540-38234-8}},
  pages        = {{199--210}},
  publisher    = {{Springer}},
  title        = {{{Ultrafast Dynamics of Optically-Induced Charge and Spin Currents in Semiconductors}}},
  doi          = {{10.1007/978-3-540-38235-5_15}},
  year         = {{2008}},
}

@article{40411,
  author       = {{Pasenow, B. and Duc, H.T. and Meier, Torsten and Koch, S.W.}},
  issn         = {{0038-1098}},
  journal      = {{Solid State Communications}},
  keywords     = {{Materials Chemistry, Condensed Matter Physics, General Chemistry}},
  number       = {{1-2}},
  pages        = {{61--65}},
  publisher    = {{Elsevier BV}},
  title        = {{{Rabi flopping of charge and spin currents generated by ultrafast two-colour photoexcitation of semiconductor quantum wells}}},
  doi          = {{10.1016/j.ssc.2007.09.029}},
  volume       = {{145}},
  year         = {{2008}},
}

@article{24976,
  author       = {{Pasenow, B. and Duc, H.T. and Meier, Torsten and Koch, S.W.}},
  issn         = {{0038-1098}},
  journal      = {{Solid State Communications}},
  pages        = {{61--65}},
  title        = {{{Rabi flopping of charge and spin currents generated by ultrafast two-colour photoexcitation of semiconductor quantum wells}}},
  doi          = {{10.1016/j.ssc.2007.09.029}},
  volume       = {{145}},
  year         = {{2008}},
}

@article{23482,
  author       = {{Pasenow, B. and Duc, H.T. and Meier, Torsten and Koch, S.W.}},
  issn         = {{0038-1098}},
  journal      = {{Solid State Communications}},
  pages        = {{61--65}},
  title        = {{{Rabi flopping of charge and spin currents generated by ultrafast two-colour photoexcitation of semiconductor quantum wells}}},
  doi          = {{10.1016/j.ssc.2007.09.029}},
  year         = {{2008}},
}

@article{23484,
  author       = {{Golde, D. and Meier, T. and Koch, S. W.}},
  issn         = {{1098-0121}},
  journal      = {{Physical Review B}},
  number       = {{7}},
  title        = {{{High harmonics generated in semiconductor nanostructures by the coupled dynamics of optical inter- and intraband excitations}}},
  doi          = {{10.1103/physrevb.77.075330}},
  volume       = {{77}},
  year         = {{2008}},
}

@article{45296,
  author       = {{Riese, Josef and Reinhold, Peter}},
  journal      = {{Lehrerbildung auf dem Prüfstand}},
  number       = {{2}},
  pages        = {{625--640}},
  title        = {{{Entwicklung und Validierung eines Instruments zur Messung professioneller Handlungskompetenz bei (angehenden) Physiklehrkräften}}},
  volume       = {{1}},
  year         = {{2008}},
}

@inproceedings{45545,
  author       = {{Riese, Josef and Reinhold, Peter}},
  booktitle    = {{Kompetenzen, Kompetenzmodelle, Kompetenzentwicklung. Gesellschaft für Didaktik der Chemie und Physik. Jahrestagung in Essen 2007}},
  editor       = {{Höttecke, Dietmar}},
  pages        = {{41--43}},
  title        = {{{Professionelles Wissen und Handlungskompetenz angehender Physiklehrer}}},
  year         = {{2008}},
}

@article{13676,
  author       = {{Schmidt, Wolf Gero and Albrecht, M. and Wippermann, S. and Blankenburg, S. and Rauls, E. and Fuchs, F. and Rödl, C. and Furthmüller, J. and Hermann, A.}},
  issn         = {{1098-0121}},
  journal      = {{Physical Review B}},
  title        = {{{LiNbO3ground- and excited-state properties from first-principles calculations}}},
  doi          = {{10.1103/physrevb.77.035106}},
  volume       = {{77}},
  year         = {{2008}},
}

@article{13674,
  author       = {{Wippermann, S. and Koch, N. and Schmidt, Wolf Gero}},
  issn         = {{0031-9007}},
  journal      = {{Physical Review Letters}},
  number       = {{10}},
  title        = {{{Adatom-Induced Conductance Modification of In Nanowires: Potential-Well Scattering and Structural Effects}}},
  doi          = {{10.1103/physrevlett.100.106802}},
  volume       = {{100}},
  year         = {{2008}},
}

@article{13666,
  author       = {{Wippermann, S. and Schmidt, Wolf Gero}},
  issn         = {{1098-0121}},
  journal      = {{Physical Review B}},
  number       = {{23}},
  title        = {{{Water adsorption on clean Ni(111) and p(2×2)-Ni(111)-O surfaces calculated from first principles}}},
  doi          = {{10.1103/physrevb.78.235439}},
  volume       = {{78}},
  year         = {{2008}},
}

@article{13671,
  author       = {{Hermann, A. and Schmidt, Wolf Gero and Schwerdtfeger, P.}},
  issn         = {{0031-9007}},
  journal      = {{Physical Review Letters}},
  number       = {{20}},
  title        = {{{Resolving the Optical Spectrum of Water: Coordination and Electrostatic Effects}}},
  doi          = {{10.1103/physrevlett.100.207403}},
  volume       = {{100}},
  year         = {{2008}},
}

@article{13673,
  author       = {{Rakel, Munise and Cobet, Christoph and Esser, Norbert and Fuchs, Frank and Bechstedt, Friedhelm and Goldhahn, Rüdiger and Schmidt, Wolf Gero and Schaff, William}},
  issn         = {{1098-0121}},
  journal      = {{Physical Review B}},
  number       = {{11}},
  title        = {{{GaN and InN conduction-band states studied by ellipsometry}}},
  doi          = {{10.1103/physrevb.77.115120}},
  volume       = {{77}},
  year         = {{2008}},
}

@article{13669,
  author       = {{Rauls, E. and Dijkstra, S. J. and Schmidt, Wolf Gero}},
  issn         = {{1098-0121}},
  journal      = {{Physical Review B}},
  number       = {{11}},
  title        = {{{Atomic structure and energetics of thec-GaN(001) surface}}},
  doi          = {{10.1103/physrevb.78.113302}},
  volume       = {{78}},
  year         = {{2008}},
}

@article{13670,
  author       = {{Rauls, E. and Blankenburg, S. and Schmidt, Wolf Gero}},
  issn         = {{0039-6028}},
  journal      = {{Surface Science}},
  pages        = {{2170--2174}},
  title        = {{{DFT calculations of adenine adsorption on coin metal (110) surfaces}}},
  doi          = {{10.1016/j.susc.2008.04.029}},
  volume       = {{602}},
  year         = {{2008}},
}

@article{13675,
  author       = {{Lange, B. and Schmidt, Wolf Gero}},
  issn         = {{0039-6028}},
  journal      = {{Surface Science}},
  pages        = {{1207--1211}},
  title        = {{{Ammonia adsorption on Cl/Si(001): First-principles calculations}}},
  doi          = {{10.1016/j.susc.2008.01.024}},
  volume       = {{602}},
  year         = {{2008}},
}

@article{13672,
  author       = {{Hermann, A and Schwerdtfeger, P and Schmidt, Wolf Gero}},
  issn         = {{0953-8984}},
  journal      = {{Journal of Physics: Condensed Matter}},
  title        = {{{Theoretical study of the localization of excess electrons at the surface of ice}}},
  doi          = {{10.1088/0953-8984/20/22/225003}},
  volume       = {{20}},
  year         = {{2008}},
}

@article{13668,
  author       = {{Rauls, E. and Schmidt, Wolf Gero}},
  issn         = {{1932-7447}},
  journal      = {{Journal of Physical Chemistry C}},
  pages        = {{11490--11494}},
  title        = {{{Influence of the Side Group Aromaticity on the Organic Molecule Adsorption on Cu(110)}}},
  doi          = {{10.1021/jp8037297}},
  volume       = {{112}},
  year         = {{2008}},
}

@article{13663,
  author       = {{Wippermann, S. and Schmidt, Wolf Gero}},
  issn         = {{0039-6028}},
  journal      = {{Surface Science}},
  pages        = {{247--250}},
  title        = {{{Optical anisotropy of the In/Si(111)(4×1)/(8×2) nanowire array}}},
  doi          = {{10.1016/j.susc.2008.11.013}},
  volume       = {{603}},
  year         = {{2008}},
}

@article{13667,
  author       = {{Blankenburg, S. and Schmidt, Wolf Gero}},
  issn         = {{1098-0121}},
  journal      = {{Physical Review B}},
  title        = {{{Spatial modulation of molecular adsorption energies due to indirect interaction}}},
  doi          = {{10.1103/physrevb.78.233411}},
  volume       = {{78}},
  year         = {{2008}},
}

@article{18564,
  abstract     = {{In the context of photoelectron spectroscopy, the GW approach has developed into the method of choice for computing excitation spectra of weakly correlated bulk systems and their surfaces. To employ the established computational schemes that have been developed for three-dimensional crystals, two-dimensional systems are typically treated in the repeated-slab approach. In this work we critically examine this approach and identify three important aspects for which the treatment of long-range screening in two dimensions differs from the bulk: (1) anisotropy of the macroscopic screening, (2) k-point sampling parallel to the surface, (3) periodic repetition and slab-slab interaction. For prototypical semiconductor (silicon) and ionic (NaCl) thin films we quantify the individual contributions of points (1) to (3) and develop robust and efficient correction schemes derived from the classic theory of dielectric screening.}},
  author       = {{Freysoldt, Christoph and Eggert, Philipp and Rinke, Patrick and Schindlmayr, Arno and Scheffler, Matthias}},
  issn         = {{1550-235X}},
  journal      = {{Physical Review B}},
  number       = {{23}},
  publisher    = {{American Physical Society}},
  title        = {{{Screening in two dimensions: GW calculations for surfaces and thin films using the repeated-slab approach}}},
  doi          = {{10.1103/PhysRevB.77.235428}},
  volume       = {{77}},
  year         = {{2008}},
}