Year: 2012
Type: article
Abstract: We show that very large paramagnetic moments are created in ultrathin Pd layers through indirect interlayer exchange coupling. Pd $L$-edge x-ray magnetic circular dichroism measurements show Pd moments in [Pd(2.5 nm)/Cu(3 nm)/Ni${}_{81}$Fe${}_{19}$(5 nm)/Cu(3 nm)]${}_{20}$ superlattices, which are ferromagnetically aligned with the applied field and nearly 3$%$ the size of Pd moments created in directly exchange-coupled [Pd(2.5 nm)/Ni${}_{81}$Fe${}_{19}$(5 nm)]${}_{20}$ superlattices. The induced moment is two orders of magnitude larger than that expected from RKKY exchange acting on the bulk paramagnetic susceptibility of Pd.
Source: Physical Review B
Authors: W. E. Bailey, A. Ghosh, S. Auffret, E. Gautier, U. Ebels, F. Wilhelm, A. Rogalev
Institutions: Columbia University, Institut polytechnique de Grenoble, Centre National de la Recherche Scientifique, Université Joseph Fourier, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Institut Nanosciences et Cryogénie, Spintronique et Technologie des Composants, European Synchrotron Radiation Facility
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1980261349