Distribution of magnetic moments in Co/Pt and Co/Pt/Ir/Pt multilayers detected by magnetic x-ray absorption

G. Schütz; S. Stähler; M. Knülle; P. Fischer; S. Parkin; H. Ebert

doi:10.1063/1.352622

Distribution of magnetic moments in Co/Pt and Co/Pt/Ir/Pt multilayers detected by magnetic x-ray absorption

G. Schütz, S. Stähler, M. Knülle, P. Fischer, S. Parkin, H. Ebert

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Abstract

Circular magnetic x-ray dichroism (CMXD) was observed at the Pt and Ir L_2,3 edges in the multilayered structures 25·(4 Å Co+30 Å Pt) and 25·(4 Å Co+11 Å Pt+8 Å Ir+11 Å Pt). The samples were prepared by sputtering and show a large perpendicular anisotropy. The magnetic absorption at the Pt and Ir L_2,3 edges was measured in an external magnetic field of 0.15 T perpendicular to the surface. The results indicate a significant spin polarization of the Pt and Ir layers. By comparison with the corresponding CMXD signals of Pt and Ir impurities in a ferromagnetic iron host we estimated the local spin and orbital moments. The results show that the innermost three monolayers in both systems couple ferromagnetically to the Co layers with an average magnetic moment of about 0.01 μ_B.

Original language	English
Pages (from-to)	6430-6432
Number of pages	3
Journal	Journal of Applied Physics
Volume	73
Issue number	10
DOIs	https://doi.org/10.1063/1.352622
State	Published - 1993
Externally published	Yes

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title = "Distribution of magnetic moments in Co/Pt and Co/Pt/Ir/Pt multilayers detected by magnetic x-ray absorption",

abstract = "Circular magnetic x-ray dichroism (CMXD) was observed at the Pt and Ir L2,3 edges in the multilayered structures 25·(4 {\AA} Co+30 {\AA} Pt) and 25·(4 {\AA} Co+11 {\AA} Pt+8 {\AA} Ir+11 {\AA} Pt). The samples were prepared by sputtering and show a large perpendicular anisotropy. The magnetic absorption at the Pt and Ir L2,3 edges was measured in an external magnetic field of 0.15 T perpendicular to the surface. The results indicate a significant spin polarization of the Pt and Ir layers. By comparison with the corresponding CMXD signals of Pt and Ir impurities in a ferromagnetic iron host we estimated the local spin and orbital moments. The results show that the innermost three monolayers in both systems couple ferromagnetically to the Co layers with an average magnetic moment of about 0.01 μB.",

author = "G. Sch{\"u}tz and S. St{\"a}hler and M. Kn{\"u}lle and P. Fischer and S. Parkin and H. Ebert",

year = "1993",

doi = "10.1063/1.352622",

language = "English",

volume = "73",

pages = "6430--6432",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

number = "10",

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TY - JOUR

T1 - Distribution of magnetic moments in Co/Pt and Co/Pt/Ir/Pt multilayers detected by magnetic x-ray absorption

AU - Schütz, G.

AU - Stähler, S.

AU - Knülle, M.

AU - Fischer, P.

AU - Parkin, S.

AU - Ebert, H.

PY - 1993

Y1 - 1993

N2 - Circular magnetic x-ray dichroism (CMXD) was observed at the Pt and Ir L2,3 edges in the multilayered structures 25·(4 Å Co+30 Å Pt) and 25·(4 Å Co+11 Å Pt+8 Å Ir+11 Å Pt). The samples were prepared by sputtering and show a large perpendicular anisotropy. The magnetic absorption at the Pt and Ir L2,3 edges was measured in an external magnetic field of 0.15 T perpendicular to the surface. The results indicate a significant spin polarization of the Pt and Ir layers. By comparison with the corresponding CMXD signals of Pt and Ir impurities in a ferromagnetic iron host we estimated the local spin and orbital moments. The results show that the innermost three monolayers in both systems couple ferromagnetically to the Co layers with an average magnetic moment of about 0.01 μB.

AB - Circular magnetic x-ray dichroism (CMXD) was observed at the Pt and Ir L2,3 edges in the multilayered structures 25·(4 Å Co+30 Å Pt) and 25·(4 Å Co+11 Å Pt+8 Å Ir+11 Å Pt). The samples were prepared by sputtering and show a large perpendicular anisotropy. The magnetic absorption at the Pt and Ir L2,3 edges was measured in an external magnetic field of 0.15 T perpendicular to the surface. The results indicate a significant spin polarization of the Pt and Ir layers. By comparison with the corresponding CMXD signals of Pt and Ir impurities in a ferromagnetic iron host we estimated the local spin and orbital moments. The results show that the innermost three monolayers in both systems couple ferromagnetically to the Co layers with an average magnetic moment of about 0.01 μB.

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U2 - 10.1063/1.352622

DO - 10.1063/1.352622

M3 - Article

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SN - 0021-8979

VL - 73

SP - 6430

EP - 6432

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 10

ER -

Distribution of magnetic moments in Co/Pt and Co/Pt/Ir/Pt multilayers detected by magnetic x-ray absorption

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