1. Imaging Magnetic Thin Films Using Resonant X-Ray Scattering
Tevfik Onur Mentes,
Imaging Magnetic Thin Films
Using Resonant X-Ray Scattering
Nov. 24th , 2003
Magnetic domains in
a Co/Pt multilayer.
Image taken by MFM,
courtesy of Olav
Hellwig, IBM, Almaden.
Imaging magnetic domain structures at
nanometer length scales by,
Cobalt L(2,3) (2p3d) resonances
Speckle Patterns Resonant Scattering
(intensity variations (strong enhancement
in the diffraction pattern in the magnetic scattering
of a non-periodic cross-section.)
object illuminated Hannon et al, PRL 61,
by a plane wave.) (1988).
See Mentes et al, J. Sync. Rad. 9, 90 (2002).
X-rays at the synchrotron facilities from
high brightness undulator sources.
Systems of interest: magnetic multilayers
and alloys (transition metal / rare earth, etc.),
mesoscopic “texture” in manganites, ordered
(“striped”) phases in strongly correlated
electron systems, etc...
In addition to imaging, study domain dynamics
at various time scales, using speckle correlations.
Experiments carried out at X1B beamline, NSLS, BNL,
and ID-4C beamline of APS, ANL.