X-ray ferromagnetic resonance spectroscopy[EPFL]

mt7344

We present a method to measure continuous-wave ferromagnetic resonance
FMR spectra based on
2 `2 j5 L& d$ ethe core-level absorption of circularly polarized x rays. The technique is demonstrated by using a
monochromatic x-ray beam incident on an yttrium–iron–garnet sample excited by a microwave field
at 2.47 GHz. FMR spectra are obtained by monitoring the x-ray absorption intensity at the photon
" K2 R: ~1 G8 M6 ?energy corresponding to the maximum of the magnetic circular dichroism effect at the iron L2,3
edges as a function of applied magnetic field. The x-ray FMR signal is shown to be energy
dependent, which makes the technique element sensitive and opens up new possibilities to perform
' S& o: U& A. M+ B" `  H& J& y, Gelement-resolved FMR in magnetic alloys and multilayers.


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權限10 & RDB=0, 3 Pages paper!!

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* L1 i' r/ k6 O$ c8 Y/ y) d
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[ 本帖最後由 mt7344 於 2007-6-9 07:00 PM 編輯 ]

engineer

X-ray?  Wow, looks like a high-end application, right?