Wilkins, S. B. and Hatton, P. D. and Roper, M. D. and Prabhakaran, D. and Boothroyd, A. T. (2003) 'Soft x-ray resonant magnetic diffraction.', Physical review letters., 90 (18). p. 187201.
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.
|Keywords:||Exchange scattering, Magnetoresistance, Polarization, Spin.|
|Full text:||PDF - Published Version (261Kb)|
|Publisher Web site:||http://dx.doi.org/10.1103/PhysRevLett.90.187201|
|Publisher statement:||© 2003 by The American Physical Society. All rights reserved.|
|Record Created:||27 Nov 2006|
|Last Modified:||13 Sep 2010 14:27|
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