Published in Physical Review B
Epitaxial Fe/V (001) multilayers are studied both experimentally and by theoretical calculations. Sputter-deposited epitaxial films are characterized by x-ray diffraction, magneto- optical Kerr effect, and x-ray magnetic circular dichroism. These results are compared with first-principles calculations modeling different amounts of interface interdi...
Published in Physical Review B
Published in Physical Review B
We report the layer-averaged magnetic moments of both Fe and Rh in sputtered Fe/Rh (100) multilayer thin films as measured by x-ray magnetic circular dichroism. We observe two distinct regimes in these films. The first is characterized by Rh moments of at least 1 μ B, Fe moments enhanced as much as 30% above bulk, and a bct crystal structure. The s...
Published in Physical Review B
The relationship between indirect exchange coupling and interlayer d-electron magnetic moments is studied using magnetometry and x-ray magnetic circular dichroism (XMCD) in Fe/Cr multilayers. Multilayers are simultaneously prepared with growth axes along different crystallographic orientations to determine the orientation dependence of these proper...
Published in Physical Review B
Published in Physical Review B
The x-ray magnetic circular dichroism (XMCD) at the Fe and V 2p edge is measured in Fe/V multilayers. For a V 3 Å/Fe 4.4 Å multilayer, the induced V moment is at least 0.26 μ B, and it is aligned antiferromagnetically with the Fe layers. The V dichroism signal is revealed to have a complicated structure relative to, eg, the Fe dichroism signal. We ...
Published in Physical Review B
Published in Physical Review B
A chemical-ordering-induced peak in the polar magneto-optical Kerr effect spectra of FePt compounds is found to be in quantitative agreement with predictions based on ab initio magneto-optical calculations. Experimental spectra of epitaxial molecular-beam- epitaxy grown FePt (001) films reveal a more than twofold enhancement of the Kerr rotation if...
Published in Physical Review B
It is found that thick (1000 Å) films of fcc Co can be stabilized via epitaxial growth onto Cu (110) substrates at room temperature. These metastable films transform into polycrystalline films of the stable hcp phase if annealed to temperatures above 200 C. The unusual stability of the fcc phase in the (110) growth direction is linked with the fact...
Published in Physical Review B
A full multiple-scattering method is described for the calculation of angle-resolved photoelectron, Auger-electron, and Kikuchi-electron diffraction patterns. The method is particularly useful for the range of electron kinetic energies from about 50 eV to a few thousand eV. Approximations that take advantage of the finite experimental angular resol...
