Influence of Ag on the microstructure and magnetic properties of perpendicular exchange coupled composite L10-[FePt-Ag]/[Co/Ni] N films

H. H. Guo; H. G. Chu; B. Ma; Z. Z. Zhang; Q. Y. Jin; H. Wang; J. P. Wang

doi:10.1063/1.4812836

Influence of Ag on the microstructure and magnetic properties of perpendicular exchange coupled composite L1₀-[FePt-Ag]/[Co/Ni] _N films

H. H. Guo, H. G. Chu, B. Ma, Z. Z. Zhang, Q. Y. Jin, H. Wang, J. P. Wang

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

4 Scopus citations

Abstract

Two series of exchange coupled composite films with and without Ag interlayer, L1₀-[FePt-Ag]/[Co/Ni]_N (FC-Ag-N) and FePt/[Co/Ni]_N (FC-N), were prepared and well studied. Coercivities of both series decrease with the increase of the soft [Co/Ni]_N thickness. However, well-isolated sphere grains are observed in FC-Ag-N samples, instead of a ledge-type structure in FC-N samples. The average grain size is almost constant for FC-Ag-N films, regardless of the thickness of Co/Ni multilayer. It indicates that Ag effectively suppresses the grain coarseness during the deposition of [Co/Ni]_N.

Original language	English (US)
Article number	252410
Journal	Applied Physics Letters
Volume	102
Issue number	25
DOIs	https://doi.org/10.1063/1.4812836
State	Published - Jun 24 2013

Bibliographical note

Funding Information:
This work was supported by the NSF of China (Grant Nos. 51071046, 61078030, 11074046, 11174056, 51222103, 51171047, and 11274113), the National Basic Research Program of China (2009CB929201), and the Characterization Facility, University of Minnesota, a member of the NSF-funded Materials Research Facilities Network (www.mrfn.org) via the NSF MRSEC program under Award No. DMR-0819885.

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10.1063/1.4812836

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title = "Influence of Ag on the microstructure and magnetic properties of perpendicular exchange coupled composite L10-[FePt-Ag]/[Co/Ni] N films",

abstract = "Two series of exchange coupled composite films with and without Ag interlayer, L10-[FePt-Ag]/[Co/Ni]N (FC-Ag-N) and FePt/[Co/Ni]N (FC-N), were prepared and well studied. Coercivities of both series decrease with the increase of the soft [Co/Ni]N thickness. However, well-isolated sphere grains are observed in FC-Ag-N samples, instead of a ledge-type structure in FC-N samples. The average grain size is almost constant for FC-Ag-N films, regardless of the thickness of Co/Ni multilayer. It indicates that Ag effectively suppresses the grain coarseness during the deposition of [Co/Ni]N.",

author = "Guo, {H. H.} and Chu, {H. G.} and B. Ma and Zhang, {Z. Z.} and Jin, {Q. Y.} and H. Wang and Wang, {J. P.}",

note = "Funding Information: This work was supported by the NSF of China (Grant Nos. 51071046, 61078030, 11074046, 11174056, 51222103, 51171047, and 11274113), the National Basic Research Program of China (2009CB929201), and the Characterization Facility, University of Minnesota, a member of the NSF-funded Materials Research Facilities Network (www.mrfn.org) via the NSF MRSEC program under Award No. DMR-0819885. ",

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T1 - Influence of Ag on the microstructure and magnetic properties of perpendicular exchange coupled composite L10-[FePt-Ag]/[Co/Ni] N films

AU - Guo, H. H.

AU - Chu, H. G.

AU - Ma, B.

AU - Zhang, Z. Z.

AU - Jin, Q. Y.

AU - Wang, H.

AU - Wang, J. P.

N1 - Funding Information: This work was supported by the NSF of China (Grant Nos. 51071046, 61078030, 11074046, 11174056, 51222103, 51171047, and 11274113), the National Basic Research Program of China (2009CB929201), and the Characterization Facility, University of Minnesota, a member of the NSF-funded Materials Research Facilities Network (www.mrfn.org) via the NSF MRSEC program under Award No. DMR-0819885.

PY - 2013/6/24

Y1 - 2013/6/24

N2 - Two series of exchange coupled composite films with and without Ag interlayer, L10-[FePt-Ag]/[Co/Ni]N (FC-Ag-N) and FePt/[Co/Ni]N (FC-N), were prepared and well studied. Coercivities of both series decrease with the increase of the soft [Co/Ni]N thickness. However, well-isolated sphere grains are observed in FC-Ag-N samples, instead of a ledge-type structure in FC-N samples. The average grain size is almost constant for FC-Ag-N films, regardless of the thickness of Co/Ni multilayer. It indicates that Ag effectively suppresses the grain coarseness during the deposition of [Co/Ni]N.

AB - Two series of exchange coupled composite films with and without Ag interlayer, L10-[FePt-Ag]/[Co/Ni]N (FC-Ag-N) and FePt/[Co/Ni]N (FC-N), were prepared and well studied. Coercivities of both series decrease with the increase of the soft [Co/Ni]N thickness. However, well-isolated sphere grains are observed in FC-Ag-N samples, instead of a ledge-type structure in FC-N samples. The average grain size is almost constant for FC-Ag-N films, regardless of the thickness of Co/Ni multilayer. It indicates that Ag effectively suppresses the grain coarseness during the deposition of [Co/Ni]N.

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