Microscopic magnetic property of perpendicular magnetic films of DyxCo100-x measured using soft X-ray magnetic circular dichroism

Akane Agui; Masaichiro Mizumaki; Toru Asahi; Koji Matsumoto; Tsuyoshi Morikawa; Junichi Sayama; Tetsuya Osaka

doi:10.1016/j.jpcs.2007.08.041

Microscopic magnetic property of perpendicular magnetic films of Dy_xCo_100-x measured using soft X-ray magnetic circular dichroism

Akane Agui^*, Masaichiro Mizumaki, Toru Asahi, Koji Matsumoto, Tsuyoshi Morikawa, Junichi Sayama, Tetsuya Osaka

^*Corresponding author for this work

School of Advanced Science and Engineering

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

9 Citations (Scopus)

Abstract

We have carried out X-ray absorption measurements with its magnetic circular dichroism (MCD) of perpendicular magnetic films of Dy_xCo_100-x (15≤x≤33) at Dy M_4,5 and Co L_2,3 absorption edges to investigate electronic and spin states of the Dy 4f and Co 3d states, respectively. The replacement of major spin between Dy 4f and Co3d is clearly observed in the spectra between 20≤x≤25. The expected values of the orbital angular moment {divides}〈L_z〉{divides} of Dy 4f were estimated to be 1.4-0.8 μ_B while that of Co 3d was estimated to be around 0.2 μ_B.

Original language	English
Pages (from-to)	2148-2152
Number of pages	5
Journal	Journal of Physics and Chemistry of Solids
Volume	68
Issue number	11
DOIs	https://doi.org/10.1016/j.jpcs.2007.08.041
Publication status	Published - 2007 Nov

Keywords

A. Amorphous materials
A. Magnetic materials
C. XAFS
D. Electronic structure
D. Magnetic properties

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

Access to Document

10.1016/j.jpcs.2007.08.041

Cite this

@article{0f7f487f16974a918d81d0c548e6646a,

title = "Microscopic magnetic property of perpendicular magnetic films of DyxCo100-x measured using soft X-ray magnetic circular dichroism",

abstract = "We have carried out X-ray absorption measurements with its magnetic circular dichroism (MCD) of perpendicular magnetic films of DyxCo100-x (15≤x≤33) at Dy M4,5 and Co L2,3 absorption edges to investigate electronic and spin states of the Dy 4f and Co 3d states, respectively. The replacement of major spin between Dy 4f and Co3d is clearly observed in the spectra between 20≤x≤25. The expected values of the orbital angular moment {divides}〈Lz〉{divides} of Dy 4f were estimated to be 1.4-0.8 μB while that of Co 3d was estimated to be around 0.2 μB.",

keywords = "A. Amorphous materials, A. Magnetic materials, C. XAFS, D. Electronic structure, D. Magnetic properties",

author = "Akane Agui and Masaichiro Mizumaki and Toru Asahi and Koji Matsumoto and Tsuyoshi Morikawa and Junichi Sayama and Tetsuya Osaka",

note = "Funding Information: This work is partly supported by Sumitomo Foundation and the 21COE Program “Practical Nano-Chemistry” of MEXT, Japan.",

year = "2007",

month = nov,

doi = "10.1016/j.jpcs.2007.08.041",

language = "English",

volume = "68",

pages = "2148--2152",

journal = "Journal of Physics and Chemistry of Solids",

issn = "0022-3697",

publisher = "Elsevier Limited",

number = "11",

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TY - JOUR

T1 - Microscopic magnetic property of perpendicular magnetic films of DyxCo100-x measured using soft X-ray magnetic circular dichroism

AU - Agui, Akane

AU - Mizumaki, Masaichiro

AU - Asahi, Toru

AU - Matsumoto, Koji

AU - Morikawa, Tsuyoshi

AU - Sayama, Junichi

AU - Osaka, Tetsuya

N1 - Funding Information: This work is partly supported by Sumitomo Foundation and the 21COE Program “Practical Nano-Chemistry” of MEXT, Japan.

PY - 2007/11

Y1 - 2007/11

N2 - We have carried out X-ray absorption measurements with its magnetic circular dichroism (MCD) of perpendicular magnetic films of DyxCo100-x (15≤x≤33) at Dy M4,5 and Co L2,3 absorption edges to investigate electronic and spin states of the Dy 4f and Co 3d states, respectively. The replacement of major spin between Dy 4f and Co3d is clearly observed in the spectra between 20≤x≤25. The expected values of the orbital angular moment {divides}〈Lz〉{divides} of Dy 4f were estimated to be 1.4-0.8 μB while that of Co 3d was estimated to be around 0.2 μB.

AB - We have carried out X-ray absorption measurements with its magnetic circular dichroism (MCD) of perpendicular magnetic films of DyxCo100-x (15≤x≤33) at Dy M4,5 and Co L2,3 absorption edges to investigate electronic and spin states of the Dy 4f and Co 3d states, respectively. The replacement of major spin between Dy 4f and Co3d is clearly observed in the spectra between 20≤x≤25. The expected values of the orbital angular moment {divides}〈Lz〉{divides} of Dy 4f were estimated to be 1.4-0.8 μB while that of Co 3d was estimated to be around 0.2 μB.

KW - A. Amorphous materials

KW - A. Magnetic materials

KW - C. XAFS

KW - D. Electronic structure

KW - D. Magnetic properties

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U2 - 10.1016/j.jpcs.2007.08.041

DO - 10.1016/j.jpcs.2007.08.041

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VL - 68

SP - 2148

EP - 2152

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

IS - 11

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