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Int. J. Mol. Sci. 2011, 12(12), 8797-8835;

X-Ray Detected Magnetic Resonance: A Unique Probe of the Precession Dynamics of Orbital Magnetization Components

European Synchrotron Radiation Facility, B.P. 220, F-38043 Grenoble Cedex, France
Laboratoire de Magnétisme de Bretagne, CNRS FRE 2697, UFR Sciences et Techniques, F-29328 Brest Cedex, France
Institut de Chimie Mol´eculaire de l’Universit´e de Bourgogne, UMR CNRS 5260, Groupe LIMRES, 9 Avenue Alain Savary, BP 47870, F-21078 Dijon Cedex, France
Author to whom correspondence should be addressed.
Received: 11 October 2011 / Revised: 12 November 2011 / Accepted: 15 November 2011 / Published: 2 December 2011
(This article belongs to the Special Issue Applications of Circular Dichroism)
Full-Text   |   PDF [608 KB, uploaded 19 June 2014]


X-ray Detected Magnetic Resonance (XDMR) is a novel spectroscopy in which X-ray Magnetic Circular Dichroism (XMCD) is used to probe the resonant precession of local magnetization components in a strong microwave pump field. We review the conceptual bases of XDMR and recast them in the general framework of the linear and nonlinear theories of ferromagnetic resonance (FMR). Emphasis is laid on the information content of XDMR spectra which offer a unique opportunity to disentangle the precession dynamics of spin and orbital magnetization components at given absorbing sites. For the sake of illustration, we focus on selected examples in which marked differences were found between FMR and XDMR spectra simultaneously recorded on ferrimagnetically ordered iron garnets. With pumping capabilities extended up to sub-THz frequencies, high-field XDMR should allow us to probe the precession of orbital magnetization components in paramagnetic organometallic complexes with large zero-field splitting. Even more challenging, we suggest that XDMR spectra might be recorded on selected antiferromagnetic crystals for which orbital magnetism is most often ignored in the absence of any supporting experimental evidence. View Full-Text
Keywords: XDMR; XMCD; FMR; high field EPR; AFMR XDMR; XMCD; FMR; high field EPR; AFMR
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Goulon, J.; Rogalev, A.; Goujon, G.; Wilhelm, F.; Youssef, J.B.; Gros, C.; Barbe, J.-M.; Guilard, R. X-Ray Detected Magnetic Resonance: A Unique Probe of the Precession Dynamics of Orbital Magnetization Components. Int. J. Mol. Sci. 2011, 12, 8797-8835.

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