UCL logo

UCL Discovery

UCL home » Library Services » Electronic resources » UCL Discovery

Soft x-ray resonant diffraction study of magnetic and orbital correlations in a manganite near half doping

Thomas, KJ; Hill, JP; Grenier, S; Kim, YJ; Abbamonte, P; Venema, L; ... van Veenendaal, M; + view all (2004) Soft x-ray resonant diffraction study of magnetic and orbital correlations in a manganite near half doping. PHYS REV LETT , 92 (23) , Article 237204. 10.1103/PhysRevLett.92.237204. Green and gold open access

[img]
Preview
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
221Kb

Abstract

We have utilized resonant x-ray diffraction at the Mn L-II,L-III edges in order to directly compare magnetic and orbital correlations in Pr0.6Ca0.4MnO3. Comparing the widths of the magnetic and orbital diffraction peaks, we find that the magnetic correlation length exceeds that of the orbital order by nearly a factor of 2. Furthermore, we observe a large (similar to3 eV) spectral weight shift between the magnetic and orbital resonant line shapes, which cannot be explained within the classic Goodenough picture of a charge-ordered ground state. To explain the shift, we calculate the orbital and magnetic resonant diffraction line shapes based on a relaxed charge-ordered model.

Type:Article
Title:Soft x-ray resonant diffraction study of magnetic and orbital correlations in a manganite near half doping
Open access status:An open access publication. A version is also available from UCL Discovery.
DOI:10.1103/PhysRevLett.92.237204
Publisher version:http://dx.doi.org/10.1103/PhysRevLett.92.237204
Language:English
Additional information:The American Physical Society
Keywords:SCATTERING, CHARGE
UCL classification:UCL > School of BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology

View download statistics for this item

Archive Staff Only: edit this record