NDLI: Direct Observation of Orbital Ordering in Layered Manganites

Content Provider	Springer Nature Link
Author	Hatton, P. D. Wilkins, S. B. Beale, T. A. W. Johal, T. Prabhakaran, D. Boothroyd, A. T.
Copyright Year	2005
Abstract	Soft X-ray resonant diffraction is a new technique and there exist several examples of large resonant enhancements of charge and magnetic scattering that can be obtained at the L-edges of 3d transition metal oxides. Here we have employed resonant soft X-ray scattering at the manganese L edges which provide a direct measurement of the orbital ordering. We have studied the layered manganite La$_{0.5}$Sr$_{1.5}$MnO$_{4}$ that displays charge, spin, and orbital ordering. Energy scans at constant wavevector show that there are two separate contributions to the observed scattering, direct Goodenough orbital ordering and strong cooperative Jahn–Teller distortions of the Mn$^{3+}$ ions. Finally we will show how that the charge, spin and orbital degrees of freedom are strongly correlated in these materials.
Starting Page	687
Ending Page	691
Page Count	5
File Format	PDF
ISSN	08961107
Journal	Journal of Superconductivity and Novel Magnetism
Volume Number	18
Issue Number	5-6
e-ISSN	15729605
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2005-12-20
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Strongly Correlated Systems, Superconductivity Magnetism, Magnetic Materials Condensed Matter Physics Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	3100/3101 Condensed Matter Physics Electronic, Optical and Magnetic Materials

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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