Schwickert, M M Coehoorn, R Tomaz, M A Mayo, E Lederman, D O Brien, W L Lin, Tao Gerry Harp
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...
Tomaz, M A Mayo, E Lederman, D Hallin, E Sham, T K Oæbrien, W L Gerry Harp
Published in
Physical Review B
Tomaz, M A Ingram, D C Gerry Harp Lederman, D Mayo, E O Brien, W L
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...
Tomaz, M A Antel, W J O Brien, W L Gerry Harp
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...
Tomaz, M A Jr, W J Oæbrien, W L Gerry Harp
Published in
Physical Review B
Gerry Harp Parkin, Ssp O Brien, W L Tonner, B P
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 ...
Conceio, J Laasksonsen, R T Wang, L S Ting Guo Nordlander, P Smalley, R E
Published in
Physical Review B
Cebollada, A Weller, D Sticht, J Gerry Harp Farrow, Rfc Marks, R F Savoy, R Scott, J C
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...
Gerry Harp Farrow, Rfc Weller, D Rabedeau, T A Marks, R F
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...
Saldin, D K Gerry Harp Chen, X
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...