Calculation of surface optical properties: from qualitative understanding to quantitative predictions
W.G. Schmidt, K. Seino, P.H. Hahn, F. Bechstedt, W. Lu, S. Wang, J. Bernholc, Thin Solid Films 455–456 (2004) 764–771.

Reflectance anisotropy of uracil covered Si(001) surfaces: Ab initio predictions
K. Seino, W.G. Schmidt, Surface Science 548 (2004) 183–186.

Ground- and excited-state properties of DNA base molecules from plane-wave calculations using ultrasoft pseudopotentials
M. Preuss, W.G. Schmidt, K. Seino, J. Furthmüller, F. Bechstedt, Journal of Computational Chemistry 25 (2004) 112–122.

Many-body and overlayer effects on surface optical properties
F. Bechstedt, R. Del Sole, S. Glutsch, P.H. Hahn, O. Pulci, W.G. Schmidt, Physica Status Solidi (B) 240 (2003) 469–479.

Gallium-rich reconstructions on GaAs(001)
M. Pristovsek, S. Tsukamoto, A. Ohtake, N. Koguchi, B.G. Orr, W.G. Schmidt, J. Bernholc, Physica Status Solidi (B) 240 (2003) 91–98.

Cycloaddition reaction versus dimer cleavage at theSi(001):interface
W. Lu, W.G. Schmidt, J. Bernholc, Physical Review B 68 (2003) 115327.

Layer-by-layer analysis of surface reflectance anisotropy in semiconductors
C. Castillo, B.S. Mendoza, W.G. Schmidt, P.H. Hahn, F. Bechstedt, Physical Review B 68 (2003) 041310(R).

Nanowire-induced optical anisotropy of the Si(111)-In surface
S. Wang, W. Lu, W.G. Schmidt, J. Bernholc, Physical Review B 68 (2003) 035329.

P-richGaP(001)(2×1)/(2×2)surface:A hydrogen-adsorbate structure determined from first-principles calculations
P.H. Hahn, W.G. Schmidt, F. Bechstedt, O. Pulci, R. Del Sole, Physical Review B 68 (2003) 033311.

Pyrrole (NH) and Polypyrrole Functionalized  Silicon Surfaces Calculated from First Principles
W.G. Schmidt, K. Seino, Surface Review and Letters 10 (2003) 221–226.

Surface Ordering of P-rich InP(001): Hydrogen Stabilization vs Electron Correlation
P.H. Hahn, W.G. Schmidt, Surface Review and Letters 10 (2003) 163–167.

Uracil Adsorbed on Si(001):  Structure and Energetics
K. Seino, W.G. Schmidt, M. Preuss, F. Bechstedt, The Journal of Physical Chemistry B 107 (2003) 5031–5035.

InP(001)-(2×1) Surface: A Hydrogen Stabilized Structure
W.G. Schmidt, P.H. Hahn, F. Bechstedt, N. Esser, P. Vogt, A. Wange, W. Richter, Physical Review Letters 90 (2003) 126101.

EfficientO(N2)method to solve the Bethe-Salpeter equation
W.G. Schmidt, S. Glutsch, P.H. Hahn, F. Bechstedt, Physical Review B 67 (2003) 085307.

Chemisorption of pyrrole and polypyrrole on Si(001)
K. Seino, W.G. Schmidt, J. Furthmüller, F. Bechstedt, Physical Review B 66 (2003) 235323.

Interplay of surface reconstruction and surface electric fields in the optical anisotropy of GaAs(001)
W.G. Schmidt, F. Bechstedt, W. Lu, J. Bernholc, Physical Review B 66 (2002) 0855334.

Structure and energetics of Ga-rich GaAs() surfaces
K. Seino, W.G. Schmidt, F. Bechstedt, J. Bernholc, Surface Science 507–510 (2002) 406–410.

GaAs(001) surface reconstructions: geometries, chemical bonding and optical properties
W.G. Schmidt, F. Bechstedt, J. Bernholc, Applied Surface Science 190 (2002) 264–268.

III-V compound semiconductor (001) surfaces
W.G. Schmidt, Applied Physics A: Materials Science &; Processing 75 (2002) 89–99.

Bulk Excitonic Effects in Surface Optical Spectra
P.H. Hahn, W.G. Schmidt, F. Bechstedt, Physical Review Letters 88 (2002).