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Tracking down electrons.jpg

Tracking down Electrons
The figure here shows a section through the electron distribution within the chemical element tungsten.  The colour intensity marks the density in the distribution of electrons; the lighter the area, the more electrons are present.  An international research team including scientists from the Peter Grünberg Institute have successfully managed to investigate the electronic state of crystalline materials at a level more than ten times deeper inside the materials as was previously possible.  Due to the fact that the physical properties of solids are based on just these electronic states in the inner part of materials, the method is predicted to have considerable potential for materials research. 

Original publication:Probing bulk electronic structure with hard X-ray angle-resolved photoemission;
A.X. Gray et al;
Nature Materials (2011), DOI:10.1038/nmat3089

Press release:  Breakthrough in Photoemission Spectroscopy

Research division: “Electronic Properties” (PGI-6) 

Copyright: Forschungszentrum Jülich/UC Davis/Lawrence Berkeley National Laboratory/Univ. Erlangen-Nürnberg/Nat. Inst. for Materials Science Hyogo/Univ. Mainz/LMU München