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Search: WFRF:(Rimantas V)

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  • Kravtsov, Evgeny, et al. (author)
  • Onset of spin-density-wave antiferromagnetism in Cr/V multilayers
  • 2007
  • In: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 76:2, s. 024421-
  • Journal article (peer-reviewed)abstract
    • Spin-density-wave (SDW) magnetism in a series of Cr/V heterostructures with different Cr thicknesses was systematically investigated by combined resistivity, neutron, and synchrotron scattering measurements. We show that the onset of the bulklike SDW state comes through several necessary steps from a paramagnetic state through a commensurate SDW to an incommensurate SDW. The Néel temperature for the incommensurate SDW is found to scale with Cr thickness and reaches the bulk value at a Cr thickness of about 2000 Å. The proximity effect from Cr/V interfaces is found to lead to (i) the appearance of a 50-Å magnetically dead Cr layer near Cr/V interfaces and (ii) suppression of the spin-flip transition and stabilization of a single-domain SDW with out-of-plane spins and out-of-plane propagation wave vector. Finally, we show that the SDW period increases with decreasing Cr thickness and becomes temperature independent in sufficiently thin Cr layers.
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  • Soroka, Inna, et al. (author)
  • Enhanced magnetic moment at the interfaces in Fe81Ni19/Co superlattices
  • 2004
  • In: Journal of Magnetism and Magnetic Materials. - : Elsevier BV. - 0304-8853 .- 1873-4766. ; 277:1-2, s. 228-235
  • Journal article (peer-reviewed)abstract
    • The structure and magnetic properties of BCC (0 0 1) oriented Fe81Ni19/Co superlattices grown on MgO(0 0 1) substrates by magnetron sputtering are presented. The variation of magnetic moment with the compn. and with the interface d. was studied. A model in which the magnetic moment per atom at the interfaces is different from that in the interior region was used for the anal. The extension of the interface region is ∌3.5 monolayers and the magnetic moment in this region is enhanced by ∌0.3 ÎŒB/atom, compared to the interior regions. The superlattices form a BCC-like structure with a slight orthorhombic distortion, which gives rise to a weak in-plane uniaxial anisotropy. [on SciFinder(R)]
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  • Result 1-6 of 6

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