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Unraveling Orbital Ordering in La0.5Sr1.5MnO4

DOI: 10.1103/PhysRevLett.92.056403 DOI Help
PMID: 14995324 PMID Help

Authors: S. Dhesi (Diamond Light Source) , A. Mirone (ESRF, France) , C. De Nadaï (ESRF, France) , P. Ohresser (LURE, Centre Université Paris Sud, France) , P. Bencok (Diamond Light Source) , N Brookes (ESRF, France) , P. Reutler (Université Paris Sud, France) , A. Revcolevschi (Université Paris Sud, France) , A. Tagliaferri (Politecnico di Milano, Italy) , O. Toulemonde (Université Louis Pasteur, France) , G. Van Der Laan (Diamond Light Source)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Physical Review Letters , VOL 92 (5)

State: Published (Approved)
Published: February 2004

Abstract: Orbital ordering (OO) in the layered perovskite La0.5Sr1.5MnO4 has been investigated using the enhanced sensitivity of soft x-ray resonant diffraction at the Mn L edges. The energy dependence of an OO diffraction peak over the L2,3 edges is compared to ligand-field calculations allowing a distinction between the influences of Jahn-Teller distortions and spin correlations. The energy dependence of the diffraction peak at the Mn L1 edge is remarkably different from that observed at the Mn K edge.

Journal Keywords: Correlations; Crystal Field; Energy Dependence; Jahn-Teller Effect; Lanthanum Compounds; Ligands; L-S Coupling; Manganese Oxides; Perovskite; Soft X Radiation; Spin; Strontium Compounds; X-Ray Diffraction

Subject Areas: Physics

Facility: ESRF