X-Ray Resonant Scattering as a Direct Probe of Orbital Ordering in Transition-Metal Oxides

1997/10/22 by Michele Fabrizio, M. Altarelli, Massimo Altarelli +2 · 2 citations
Chemical Engineering · Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Catalysis and Oxidation Reactions #Transition Metal Oxide Nanomaterials #cond-mat.mtrl-sci #cond-mat.str-el

paper · pdf · doi:10.1103/physrevlett.80.3400

LaTex using RevTex, 4 pages and two included postscript figures

arxiv created 1997/10/22 · openalex publication_date 1998/04/13 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

X-ray resonant scattering at the K-edge of transition-metal oxides is shown to measure the orbital order parameter, supposed to accompany magnetic ordering in some cases. Virtual transitions to the 3d orbitals are quadrupolar in general. In cases with no inversion symmetry, such as V₂O₃, treated in detail here, a dipole component enhances the resonance. Hence, we argue that the detailed structure of orbital order in V₂O₃ is experimentally accessible.

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• Resonant x-ray-scattering study of octahedral tilt ordering inLaMnO3andPr1−xCaxMnO3
• Electronic Structure and Phase Transition in V2O3: Importance of 3d Spin-Orbit Interaction and Lattice Distortion