Pd magnetism induced by indirect interlayer exchange coupling
| Autor: | Bailey, W. E., Ghosh, A., Auffret, S., Gautier, E., Ebels, U., Wilhelm, F., Rogalev, A. |
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| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | PRB 86 144403 (2012) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevB.86.144403 |
| Popis: | 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(2.5nm)/Cu(3nm)/Ni$_{81}$Fe$_{19}$(5nm)/Cu(3nm)]$_{20}$ superlattices which are ferromagnetically aligned with the applied field and nearly 3% the size of Pd moments created in directly exchange coupled [Pd(2.5nm)/Ni$_{81}$Fe$_{19}$(5nm)]$_{20}$ superlattices. The induced moment is two orders of magnitude larger than that expected from RKKY exchange acting on the bulk paramagnetic susceptibility of Pd. Comment: 5 pages, 3 figures, to appear in Phys. Rev. B |
| Databáze: | arXiv |
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