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Physical Review B (Condensed Matter and Materials Physics) -- May 1, 1998 -- Volume 57, Issue 17 pp. 10284-10286
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Magnetic phase diagram of interfacially rough Fe/Cr multilayers
R. S. Fishman
Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6032
(Received 3 September 1997)
Neutron-scattering measurements have revealed that the spin-density wave (SDW) inside the Cr spacer of Fe/Cr magnetic multilayers may be either commensurate (C ) or incommensurate (I ) depending on the temperature and Cr thickness N . We theoretically evaluate the magnetic phase diagram of Fe/Cr multilayers under the assumption that the nodes of the SDW lie at the Cr-Fe interface, as found by recent neutron-scattering measurements. While the C phase is never stable under this assumption, the paramagnetic to I transition temperature T N (N ) takes on a seesaw pattern as the SDW wave vector switches between different allowed values.
©1998 The American Physical Society
URL: http://link.aps.org/abstract/PRB/v57/p10284
PACS:
75.30.Fv, 75.30.Ds, 75.70.Cn
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Ab initio local-spin-density study of oscillatory exchange coupling and spin density waves in Fe/Cr multilayers R. Hafner et al. , J. Appl. Phys. 87 , 5756 (2000)
Magnetic behavior of thin Cr layers sandwiched by Fe A. B. Klautau et al. , Phys. Rev. B 60 , 3421 (1999)
Collinear spin-density-wave ordering in Fe/Cr multilayers and wedges R. S. Fishman et al. , Phys. Rev. B 59 , 13849 (1999)
Helical and Incommensurate Spin-Density Waves in Fe/Cr Multilayers with Interfacial Steps R. S. Fishman, Phys. Rev. Lett. 81 , 4979 (1998)
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