Robert W. Keyes
Physical Review B
Soft x-ray resonant scattering at the Ni L2,3 edges is used to test models of magnetic- and orbital-ordering below the metal-insulator transition in NdNiO3. The large branching ratio of the L3 to L2 intensities of the (1 2 0 1 2) reflection and the observed azimuthal angle and polarization dependence originates from a noncollinear magnetic structure. The absence of an orbital signal and the noncollinear magnetic structure show that the nickelates are materials for which orbital ordering is absent at the metal-insulator transition. © 2006 The American Physical Society.
Robert W. Keyes
Physical Review B
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