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Publications::
Preziosi, D.; Alexe, M.; Hesse, D.; Salluzzo, M. Electric-field control of the orbital occupancy and magnetic moment of a transition-metal oxide Physical Review Letters 115 (2015), 157401/1-5 By using soft-x-ray linear and magnetic dichroism on La0.825Sr0.175MnO3/PbZr0.2Ti0.8O3 ferromagnetic-ferroelectric heterostructures we demonstrate a nonvolatile modulation of the Mn 3d orbital anisotropy and magnetic moment. X-ray absorption spectroscopy at the Mn L2;3 edges shows that the ferroelectric
polarization direction modifies the carrier density, the spin moment, and the orbital splitting of t2g and
eg Mn 3d states. These results are consistent with polar distortions of the oxygen octahedra surrounding
the Mn ions induced by the switching of the ferroelectric polarization. View/Download |
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