X-ray holography of skyrmionic cocoons in aperiodic magnetic multilayers

X-ray Analysis of Magnetic Multilayers

Combined methods of X-ray reflectivity and X-ray diffraction were used in a structural study of Ag/NiFe multilayers with different thickness of the magnetic sublayer and during an annealing process. The results explain from the microscopic point of view distinctions found in their magnetic behavior. The XRD methods used are based on the distorted-wave Born approximation theory in the region clo...

Observation of magnetic multilayers by electron holography.

Magnetic structures of Co/Cu multilayers in cross section are observed by two kinds of electron holography: a Fourier method and a phase-shifting method, which is introduced briefly. The Fourier method can easily reconstruct wave functions and is applied to many specimens, whereas the phase-shifting method requires longer time for processing, but has a higher spatial resolution that permits us ...

Magnetic imaging by LEEM, X-PEEM, X-ray microscopy, and X-ray holography

Theory of induced magnetic moments and x-ray magnetic circular dichroism in Co-Pt multilayers

For Co-Pt multilayers, the magnetic moments of the Pt atoms and the x-ray magnetic circular dichroism ~XMCD! spectra at the L2 and L3 edge of Pt are calculated by the ab initio density-functional electron theory. The calculated magnetization profile for an ideal Co-Pt interface is in part different from the profile obtained by x-ray resonant magnetic reflectometry for the real interface. Some o...

Massively parallel X-ray holography

Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA Stanford Synchrotron Radiation Laboratory, Stanford Linear Accelerator Center, 2575 Sand Hill Road, Menlo Park, California 94025, USA Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, ...