Donut-shaped orbitals and Ising magnetism in Ca3Co2O6

Donut-shaped orbitals and Ising magnetism in Ca₃Co₂O₆

The research teams of Hao Tjeng from the MPI-CPfS, Andrea Severing from the University of Cologne, Antoine Maignan from CRISMAT Laboratory Caen, and Maurits Haverkort from the University of Heidelberg have succeeded in determining the electronic orbital that is responsible for the Ising magnetism in Ca₃Co₂O₆. A direct image of the donut-shaped orbital has been made using the new Max Planck end-station at German Electron Synchrotron DESY in Hamburg.

Ca₃Co₂O₆ is a very peculiar material. ...

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