A drop of hyperfine field at Sn in Fe/Cr/Sn/Cr multilayers

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A drop of hyperfine field at Sn in Fe/Cr/Sn/Cr multilayers. / Arzhnikov, A. K.; Dobysheva, L. V.; Fedorov, D. V.; Uzdin, V. M.

In: Journal of Magnetism and Magnetic Materials, Vol. 300, No. 2, 05.2006, p. 351-357.

Research output: Contribution to journal › Article › peer-review

Author

Arzhnikov, A. K. ; Dobysheva, L. V. ; Fedorov, D. V. ; Uzdin, V. M. / A drop of hyperfine field at Sn in Fe/Cr/Sn/Cr multilayers. In: Journal of Magnetism and Magnetic Materials. 2006 ; Vol. 300, No. 2. pp. 351-357.

BibTeX

@article{64ac3ec091ae4ae89f04c648c69ec6d4,

title = "A drop of hyperfine field at Sn in Fe/Cr/Sn/Cr multilayers",

abstract = "The magnetism of the Fe/Cr/Sn/Cr multilayers was studied by the first-principle density functional theory. Possible reasons for an experimentally well-known drop of the hyperfine field (HFF) at Sn with a decrease of the Cr width (at 3 nm) are considered. The calculations by LAPW and SKKR methods showed that two solutions exist in the Fe9/Cr14/Sn/Cr2 system. One of them originates from the antiferromagnetic order in the bulk Cr, and the other is connected to the incommensurate spin density wave (ISDW) in Cr, which is realized in our case in a Cr film thinner than the half-length period of commonly observed ISDW. The ISDW solution is investigated in more detail with respect to its dependence on temperature and the accuracy of the Fermi-surface description. In the Cr layers with width lower than a quarter of the wave (3 nm), the ISDW cannot exist and thus cannot be a cause of the sharp drop of the Sn HFF. It is shown by the calculation of the Fe3/Cr8/Sn/Cr8 system that another possible reason for the HFF drop, connected to imperfections at the Fe/Cr interface, may cause a significant decrease in the HFF at Sn. This is shown for an interfacial Fe/Cr mixing.",

keywords = "Electronic structure, Hyperfine field, Multilayer systems",

author = "Arzhnikov, {A. K.} and Dobysheva, {L. V.} and Fedorov, {D. V.} and Uzdin, {V. M.}",

note = "Funding Information: This work was partially supported by INTAS (Grants 01-0386 and 03-51-4778) and RFBR (Grants 03-02-16139 and 04-02-16024). D.V.F. would like to thank Dr. Nikos Papanikolaou and Professor Ingrid Mertig for providing a version of the screened KKR code and valuable advice. The authors would like to thank the Joint Supercomputer Center (Moscow) for having allowed access to their computers. ",

year = "2006",

month = may,

doi = "10.1016/j.jmmm.2005.05.021",

language = "English",

volume = "300",

pages = "351--357",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier",

number = "2",

}

RIS

TY - JOUR

T1 - A drop of hyperfine field at Sn in Fe/Cr/Sn/Cr multilayers

AU - Arzhnikov, A. K.

AU - Dobysheva, L. V.

AU - Fedorov, D. V.

AU - Uzdin, V. M.

N1 - Funding Information: This work was partially supported by INTAS (Grants 01-0386 and 03-51-4778) and RFBR (Grants 03-02-16139 and 04-02-16024). D.V.F. would like to thank Dr. Nikos Papanikolaou and Professor Ingrid Mertig for providing a version of the screened KKR code and valuable advice. The authors would like to thank the Joint Supercomputer Center (Moscow) for having allowed access to their computers.

PY - 2006/5

Y1 - 2006/5

N2 - The magnetism of the Fe/Cr/Sn/Cr multilayers was studied by the first-principle density functional theory. Possible reasons for an experimentally well-known drop of the hyperfine field (HFF) at Sn with a decrease of the Cr width (at 3 nm) are considered. The calculations by LAPW and SKKR methods showed that two solutions exist in the Fe9/Cr14/Sn/Cr2 system. One of them originates from the antiferromagnetic order in the bulk Cr, and the other is connected to the incommensurate spin density wave (ISDW) in Cr, which is realized in our case in a Cr film thinner than the half-length period of commonly observed ISDW. The ISDW solution is investigated in more detail with respect to its dependence on temperature and the accuracy of the Fermi-surface description. In the Cr layers with width lower than a quarter of the wave (3 nm), the ISDW cannot exist and thus cannot be a cause of the sharp drop of the Sn HFF. It is shown by the calculation of the Fe3/Cr8/Sn/Cr8 system that another possible reason for the HFF drop, connected to imperfections at the Fe/Cr interface, may cause a significant decrease in the HFF at Sn. This is shown for an interfacial Fe/Cr mixing.

AB - The magnetism of the Fe/Cr/Sn/Cr multilayers was studied by the first-principle density functional theory. Possible reasons for an experimentally well-known drop of the hyperfine field (HFF) at Sn with a decrease of the Cr width (at 3 nm) are considered. The calculations by LAPW and SKKR methods showed that two solutions exist in the Fe9/Cr14/Sn/Cr2 system. One of them originates from the antiferromagnetic order in the bulk Cr, and the other is connected to the incommensurate spin density wave (ISDW) in Cr, which is realized in our case in a Cr film thinner than the half-length period of commonly observed ISDW. The ISDW solution is investigated in more detail with respect to its dependence on temperature and the accuracy of the Fermi-surface description. In the Cr layers with width lower than a quarter of the wave (3 nm), the ISDW cannot exist and thus cannot be a cause of the sharp drop of the Sn HFF. It is shown by the calculation of the Fe3/Cr8/Sn/Cr8 system that another possible reason for the HFF drop, connected to imperfections at the Fe/Cr interface, may cause a significant decrease in the HFF at Sn. This is shown for an interfacial Fe/Cr mixing.

KW - Electronic structure

KW - Hyperfine field

KW - Multilayer systems

UR - http://www.scopus.com/inward/record.url?scp=33644910776&partnerID=8YFLogxK

U2 - 10.1016/j.jmmm.2005.05.021

DO - 10.1016/j.jmmm.2005.05.021

M3 - Article

AN - SCOPUS:33644910776

VL - 300

SP - 351

EP - 357

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

IS - 2

ER -

ID: 99347261