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Role of magnetic and orbital ordering at the metal-insulator transition in NdNiO3

V. Scagnoli, U. Staub, A. M. Mulders, M. Janousch, G. I. Meijer, G. Hammerl, J. M. Tonnerre, and N. Stojic
Phys. Rev. B 73, 100409(R) – Published 27 March 2006; Erratum Phys. Rev. B 74, 069902 (2006)
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    Abstract

    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∕201∕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.

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    • Received 28 November 2005

    DOI:https://doi.org/10.1103/PhysRevB.73.100409

    ©2006 American Physical Society

    Erratum

    Erratum: Role of magnetic and orbital ordering at the metal-insulator transition in NdNiO3 [Phys. Rev. B 73, 100409(R) (2006)]

    V. Scagnoli, U. Staub, A. M. Mulders, M. Janousch, G. I. Meijer, G. Hammerl, J. M. Tonnerre, and N. Stojic
    Phys. Rev. B 74, 069902 (2006)

    Authors & Affiliations

    V. Scagnoli1, U. Staub1, A. M. Mulders1, M. Janousch1, G. I. Meijer2, G. Hammerl2, J. M. Tonnerre3, and N. Stojic4

    • 1Swiss Light Source, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
    • 2Zurich Research Laboratory, IBM Research, 8803 Rüschlikon, Switzerland
    • 3Laboratoire de Cristallographie, CNRS, 38042 Grenoble, France
    • 4Abdus Salam International Centre for Theoretical Physics, Trieste 34014, Italy

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    Issue

    Vol. 73, Iss. 10 — 1 March 2006

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    • Figure 1
      Figure 1
      Absorption corrected intensity of the (1∕201∕2) reflection of NdNiO3 at 30K for incident σ and π polarization in the vicinity of the Ni L2,3 edges (ψ=0°). The incident π data are offset for clarity. The inset shows the theoretical fit using two different Ni sites.Reuse & Permissions
    • Figure 2
      Figure 2
      (Color online) Temperature dependence of the (1∕201∕2) reflection of NdNiO3 for cooling and heating taken at the Ni L3 edge (857.4eV) with π incident radiation at ψ=90°. Inset: Proposed magnetic structure of NdNiO3. The open circles reflect the Ni ions with their magnetic dipole moments and the closed circles reflect the Nd ions with their corresponding predicted induced moments.Reuse & Permissions
    • Figure 3
      Figure 3
      (Color online) Integrated intensity of the (1∕201∕2) reflection at T=30K as a function of the azimuthal angle taken at 857.4eV (L3 edge) with π (upper panel) and σ (lower panel) incident radiation. The solid line corresponds to the calculations of the magnetic model shown in Fig. 2. The dotted and dashed lines represent the collinear models with moments along the a axis (Ref. 5) and within the (a,c) plane (Refs. 6, 11), respectively. ψ=0° is for [010] along the z azis.Reuse & Permissions
    • Figure 4
      Figure 4
      (Color online) Angular dependence (θ:2θ scan) of the (1∕201∕2) reflection at ψ=90° taken for all four different polarization channels, which are taken in two different experiments. They are taken at the maximum intensity of the Ni L3 edge (857.4eV). There is a constant added to the data taken at 75K for better visibility.Reuse & Permissions
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