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A PhD position is immediately available in the physics department at the university of Freiburg, Germany. The project involves the study of the electronic (and geometric) structure of pure and mixed free size selected metal clusters, as well as of ultrafast dynamics in these "finite electron gas" systems. The successful candidate will operate one of the most advanced cluster spectroscopy setups, to which very recently an ultralow temperature (<10 K) rf-trap for cluster thermalization has been added. Currently an improved photoelectron spectrometer is under construction as well, which together with the cluster cooling will allow to measure spectra of unprecedented resolution. This will be used to study, e.g., the finite size analogues of low temperature quantum effects like superconductivity or Kondo effect. Ultrafast phenomena (and their size and temperature dependence) will be studied by femtosecond pump-probe- spectroscopy. There is a close cooperation with theoretical groups. We are looking for an able and highly motivated candidate, ideally with experience in some of the following fields: ion beams/mass spectroscopy, laser spectroscopy, photoelectron spectroscopy, femtosecond spectroscopy, ultrahigh vacuum technology. For further information please visit our group homepage http://cluster.physik.uni-freiburg.de/, or contact Prof. Bernd v.Issendorff ([log in to unmask]) To join or leave the molecular-dynamics-news email list, go to: http://www.jiscmail.ac.uk/lists/molecular-dynamics-news.html