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Bilder aus der Forschung des PGI-1/IAS-1

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Fermi surface of tungsten
Shown is the Fermi surface of tungsten in the First Brillouin zone, with the spin-mixing parameter in a color-code. In the presence of spin-orbit coupling, the electronic states are not of pure but of mixed spin character. Points of full spin mixing (value of 0.5) are called 'spin hot spots' (red regions in the picture). The direction of the spin-quantization axis is illustrated by the red arrow. For the phenomenon of spin-relaxation in spin-transport processes, spin-mixing parameter on the Fermi surface is of fundamental importance.
Quelle: Forschungszentrum Jülich
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