Sonderforschungsbereich 616

 

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Bilder SFB616
  
  
News!

 Preisverleihung: Dr. Martin Magiera aus der Arbeitsgruppe von Prof. Dr. Dietrich Wolf hat in diesem
   Jahr den Preis der Sparkasse Duisburg erhalten.
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 Preisverleihung: Jeweils fünf Gewinner(teams) gab es beim Cenide Paper Award und Logowettbewerb.
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 Finalistin: Dr. Simone Wall ist als eine von 4 Finalistinen für den Dissertationspreise der
   „Sektion Kondensierte Materie“ der Deutschen Physikalischen Gesellschaft“ vorgeschlagen.
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 Auszeichnung: Dr. Hichem Hattab wird für seinen überdurchschnittlichen Abschluss
   ausgezeichnet.
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 Preisverleihung: CENIDE Best Paper Award: Hichem Hattab „Interplay of wrinkles, strain, and
   lattice parameter in Graphene layers on Iridium“ Nanoletters 12 (2012) 678.
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 Preisverleihung: CENIDE Fotowettbewerb: Ulrich Hagemann und Arkadius Ganczarczyk sowie
   Florian Meinerzhagen
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 Preisverleihung: Best Poster Award für Dipl.-Phys. Stefanie Hanke bei der internationalen
   Konferenz „Computer Simulationsof Radiation Effects in Solids“ (COSIRES / Santa Fe, New Mexico, US).
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 Preisverleihung: Best Poster Award für Dipl.-Phys. Maren Cottin bei der internationalen
   Konferenz „International Conference for Nanoscience and Technology“ (ICN+T / Paris).
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 Notfallbetreuung für den Nachwuchs. Die Deutsche Forschungsgemeinschaft fördert
   Gleichstellungsmaßnahmen. Mehr lesen...



Introduction: The transformation of one kind of energy into another accompanies all processes in our world, and frequently also propels them. Many of these transformations - like the chemical reactions of catalysts or in sensors, or the mechanical friction or dispersion of charge carriers in microprocessors - take place at surfaces, or at the interfaces of solid materials.

The SFB616 targets the clarification of these elementary procedures through the energy dissipation at surfaces. The program of the SFB616 is broadly designed and comprises the whole spectrum of stimulation and relaxation from the eV regime (particle interaction, laser stimulation, reactions and surfaces) through phonons and frictions losses in the meV regime to the meV area (electromigration)


 The research sub-groups of the SFB are divided into three sections:

a4
Particles:

Here, the primary input of energy occurs via the interaction of clusters, molecules, atoms, or ions with the surface. The amount of transferred energy ranges from eV to few keV. In projects A1-A6, energy dissipation processes are studied by means of spectroscopic techniques. The experiments are not time resolved but quasi-stationary.

 

b4
Dynamics:

This section focuses on the dynamic observation of the energy dissipation process. This requires the excitation of a surface via an ultra-short laser pulse providing photonenergies of a few eV. Using the pump-probe technique with a second delayed pulse probes the reaction of the system upon excitation. In projects B1-B7, diffraction, spectroscopic, and imaging techniques are used.

 

c2
Friction:

This section involves the study of the transport of particles and electrons at surfaces and in thin layers, particularly the energy dissipation due to both mechanical friction as well as electronic friction due to scattering at the surface and interfaces. Also, the elementary processes of materials transport (electromigration and wear) will be studied. In projects C1-C7, spectroscopic and imaging techniques are used.

 

The Sonderforschungsbereich 616 (SFB616) on the 'energy dissipation at surfaces'
began July 1, 2002, and is sponsored by the Deutsche Forschungsgemeinschaft (DFG)