Soft X-ray resonant magnetic diffraction

Wilkins, S.B.; Hatton, P.D.; Roper, M.D.; Prabhakaran, D.; Boothroyd, A.T.

Abstract

We have conducted the first soft x-ray diffraction experiments from a bulk single crystal, studying the bilayer manganite La22xSr12xMn2O7 with x 0:475 in which we were able to access the (002) Bragg reflection using soft x rays. The Bragg reflection displays a strong resonant enhancement at the LIII and LII manganese absorption edges. We demonstrate that the resonant enhancement of the magnetic diffraction of the (001) is extremely large, indeed so large that it exceeds that of the nonresonant Bragg diffraction. Resonant soft x-ray scattering of 3d transition metal oxides is the only technique for the atomic selective measurement of spin, charge, and orbital correlations in materials, such as high temperature superconductors, colossal magnetoresistance manganites, and charge stripe nickelates.

Citation

Wilkins, S., Hatton, P., Roper, M., Prabhakaran, D., & Boothroyd, A. (2003). Soft X-ray resonant magnetic diffraction. Physical Review Letters, 90(18), Article 187201. https://doi.org/10.1103/physrevlett.90.187201

• Journal Article Type: Article
• Publication Date: 2003-05
• Deposit Date: Nov 27, 2006
• Publicly Available Date: Sep 13, 2010
• Journal: Physical Review Letters
• Print ISSN: 0031-9007
• Electronic ISSN: 1079-7114
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 90
• Issue: 18
• Article Number: 187201
• DOI: https://doi.org/10.1103/physrevlett.90.187201
• Keywords: Exchange scattering, Magnetoresistance, Polarization, Spin.
• Public URL: https://durham-repository.worktribe.com/output/1592395