Frontiers in Electronic Materials:
Correlation Effects and Memristive Phenomena
June 17-20, 2012, Eurogress Aachen, Aachen, Germany.
I cannot remember that our work was presented in a poster larger than this one. The image comes from the PhD thesis of Alexander Thiess. The cube displays the atomically resolved spatial distribution of local density of states (LDOS) of the phase change material GeSbTe. In the right lower part the chemical information, in the central part the value of the LDOS is displayed. Here, large (small) radii of the spheres correspond to high (low) DOS values. For both parts of the plot Ge, Vac, Sb, and Te are shown in white, transparent, light blue, and dark blue, respectively. The cube expresses results of density functional theory calculation that was carried out with our newly developed KKRnano method on the BlueGene/P supercomputer JUGENE of the Forschungszentrum Jülich using a cubic supercell of 4096 atoms containing Ge512VAC512Sb1024Te2048.
(see also: http://www.nature.com/natureconferences/fem2012/index.html ) — at Eurogress Aachen.