Saito, N.; Muramatsu, Y.; Chiba, H.; Ueba, K.; Kubozuka, K.; Koyano, I.; Okada, K.; Jagutzki, O.; Czasch, A.; Weber, T. et al.; Hattass, M.; Schmidt-Böcking, H.; Moshammer, R.; Lavollée, M.; Becker, U.: Deformation, nuclear motion and fragmentation of core-excited CO₂ probed by multiple-ion coincidence momentum imaging. Journal of Electron Spectroscopy and Related Phenomena 141 (2-3), pp. 183 - 193 (2004)

Oomens, J.; Helden, G. v.; Meijer, G.: Infrared Photodissociation Spectroscopy of the Benzoic Acid Radical Cation in a Quadrupole Trap. Journal of Physical Chemistry A 108 (40), pp. 8273 - 8278 (2004)

Carcabal, P.; Kroemer, R. T.; Snoek, L. C.; Simons, J. P.; Bakker, J. M.; Compagnon, I.; Meijer, G.; Helden, G. v.: Hydrated complexes of tryptophan: ion dip infrared spectroscopy in the molecular fingerprint region, 100–2000 cm^–1. Physical Chemistry Chemical Physics 6 (19), pp. 4546 - 4552 (2004)

Lischke, T.; Böwering, N.; Schmidtke, B.; Müller, N.; Khalil, T.; Heinzmann, U.: Circular dichroism in valence photoelectron spectroscopy of free unoriented chiral molecules: Camphor and bromocamphor. Physical Review A 70, pp. 022507-1 - 022507-12 (2004)

Jaeger, T. D.; Heijnsbergen, D. v.; Klippenstein, S. J.; Helden, G. v.; Meijer, G.; Duncan, M. A.: Vibrational Spectroscopy and Density Functional Theory of Transition-Metal Ion-Benzene and Dibenzene Complexes in the Gas Phase. Journal of the American Chemical Society 126 (35), pp. 10981 - 10991 (2004)

Polcik, M.; Kittel, M.; Hoeft, J. T.; Terborg, R.; Toomes, R. L.; Woodruff, D. P.: Adsorption geometry of CN on Cu(1 1 1) and Cu(1 1 1)/O. Surface Science 563 (1-3), pp. 159 - 168 (2004)

Kampen, T. U.; Bekkali, A.; Thurzo, I.; Zahn, D. R. T.; Bolognesi, A.; Ziller, T.; Di Carlo, A.; Lugli, P.: Barrier heights of organic modified Schottky contacts: theory and experiment. Applied Surface Science 234 (1-4), pp. 313 - 320 (2004)

Kampen, T. U.; Das, A.; Park, S.; Hoyer, W.; Zahn, D. R. T.: Relation between morphology and work function of metals deposited on organic substrates. Applied Surface Science 234 (1-4), pp. 333 - 340 (2004)

Horn, R.; Mestl, G.; Thiede, M.; Jentoft, F. C.; Schmidt, P. M.; Bewersdorf, M.; Weber, R.; Schlögl, R.: Gas phase contributions to the catalytic formation of HCN from CH₄ and NH₃ over Pt: An in situ study by molecular beam mass spectrometry with threshold ionization. Physical Chemistry Chemical Physics 6 (18), 1, pp. 4514 - 4521 (2004)

Horn, K.: Physics: Charging atoms, one by one. Science 305 (5683), pp. 483 - 484 (2004)

Blume, R.; Niehus, H.; Conrad, H.; Böttcher, A.: Surface-Defect-Mediated Channel for Oxygen Incorporation into Ru(0001). Journal of Physical Chemistry B 108 (38), pp. 14332 - 14339 (2004)

Kugeler, O.; Prümper, G.; Hentges, R.; Viefhaus, J.; Rolles, D.; Becker, U.; Marburger, S.; Hergenhahn, U.: Intramolecular Electron Scattering and Electron Transfer Following Autoionization in Dissociating Molecules. Physical Review Letters 93 (3), 033002 (2004)

Kampen, T. U.; Schüller, A.; Zahn, D.R.T.; Biel, B.; Ortega, J.; Pérez, R.; Flores, F.: Schottky contacts on passivated GaAs(100) surfaces: barrier height and reactivity. Applied Surface Science 234 (1-4), pp. 341 - 348 (2004)

Rotenberg, E.; Theis, W.; Horn, K.: Electronic structure investigations of quasicrystals. Progress in Surface Science 75 (3-8), pp. 237 - 253 (2004)

O'Keeffe, P.; Aloïse, S.; Fritzsche, S.; Lohmann, B.; Kleiman, U.; Meyer, M.; Grum-Grzhimailo, A. N.: Resonant Auger decay of Xe* 4d_5/2^-16p: A contribution to the complete experiment from fluorescence polarization studies. Physical Review A 70 (1), 012705 (2004)

Dil, J. H.; Kim, J. W.; Gokhale, S.; Tallarida, M.; Horn, K.: Self-organization of Pb thin films on Cu(111) induced by quantum size effects. Physical Review B 70 (4), 045405 (2004)

Schulz, S. A.; Bethlem, H. L.; van Veldhoven, J.; Küpper, J.; Conrad, H.; Meijer, G.: Microstructured Switchable Mirror for Polar Molecules. Physical Review Letters 93 (2), pp. 020406-1 - 020406-4 (2004)

Fielicke, A.; Kirilyuk, A.; Ratsch, C.; Behler, J.; Scheffler, M.; Helden, G. v.; Meijer, G.: Structure Determination of Isolated Metal Clusters via Far-Infrared Spectroscopy. Physical Review Letters 93 (2), 023401 (2004)

Püttner, R.; Kolczewski, C.; Martins, M.; Schlachter, A. S.; Snell, G.; Sant'Anna, M.; Viefhaus, J.; Hermann, K.; Kaindl, G.: The C 1s NEXAFS spectrum of benzene below threshold: Rydberg or valence character of the unoccupied sigma-type orbitals. Chemical Physics Letters 393 (4-6), pp. 361 - 366 (2004)

Prümper, G.; Viefhaus, J.; Cvejanovic, S.; Rolles, D.; Geßner, O.; Lischke, T.; Hentges, R.; Wienberg, C.; Mahler, W.; Becker, U. et al.; Langer, B.; Prosperi, T.; Zema, N.; Turchini, S.; Zada, B.; Senf, F.: Upper limits for stereoselective photodissociation of free amino acids in the vacuum ultraviolet region and at the C 1s edge. Physical Review A 69 (6), 062717 (2004)