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On Biquadratic Interlayer Coupling in Magnetic Multilayers
Acta Physica Polonica. A
Intrinsic biquadratic interlayer coupling in magnetic layered structures is analysed theoretically within the spin-polarized free-electron approximation. The corresponding coupling parameter oscillates with the interlayer thickness with the oscillation period equal to half of that for bilinear term. An extrinsic mechanism following from a competition between the intra-and interlayer exchange coupling is also discussed. PACS numbers: 75.50.Rr, 75.70.Cn Experimental data on interlayer exchangedoi:10.12693/aphyspola.85.461 fatcat:zoht4kmtdvhgtjslade6nitsr4