The magnetic coupling of two layers of Fe through an intervening layer of Cr as a function of the Cr layer thickness has been computed. By including both RKKY and superexchangelike interactions between planes of Fe, and accounting for the surface roughness of the interfaces, the experimentally observed oscillations in the coupling between Fe layers as a function of Cr layer width could be reproduced. The predominance of antiferromagnetic coupling reflects the dominance of superexchange over RKKY exchange and is a consequence of the position of the Fermi level of Cr in a minimum between peaks in the density of states. This condition can be used to explain similar behavior in Co/Ru and to identify other possible transition metal systems for which this behavior may be observed.
A theory of oscillations in the exchange coupling between two transition-metal ferromagnets separated by a nonmagnetic transition-metal spacer is developed for a one-band model....
Spin-polarized low-energy electron diffraction is applied for the first time to study the coupling between ferromagnetic and antiferromagnetic ultrathin films. The remanent magn...
A neutron diffraction study has been made of the trifluorides of $3d$ transition group elements. The arrangement of the magnetic ions and the anions in these trifluorides is sim...
We investigated exchange coupling of Fe layers across Au and Cr interlayers by means of light scattering from spin waves. For Au interlayers we find a continuous decrease of thi...
Metal-insulator transitions are accompanied by huge resistivity changes, even over tens of orders of magnitude, and are widely observed in condensed-matter systems. This article...
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