Orbital and spin moments in SmFe2 studied by means of white-x-ray magnetic diffraction

Hayato Miyagawa; Tetsuya Nakamura; Yasuhiro Watanabe; Masahisa Ito; Hiromichi Adachi; Hiroshi Kawata; Susumu Nanao

doi:10.1088/0953-8984/14/41/309

Orbital and spin moments in SmFe₂ studied by means of white-x-ray magnetic diffraction

Hayato Miyagawa, Tetsuya Nakamura, Yasuhiro Watanabe, Masahisa Ito, Hiromichi Adachi, Hiroshi Kawata, Susumu Nanao

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

3 Citations (Scopus)

Abstract

A magnetic structure of SmFe₂ with a Laves phase crystalline structure was investigated by means of white-x-ray magnetic diffraction. The orbital and the spin magnetic form factors of Sm and Fe ions have been obtained as a function of momentum transfer. Their extrapolation to zero momentum transfer, according to the dipole approximation based on an atomic model, has given the values of the spin and the orbital magnetic moments of Sm ions as -2.54 ± 0.55 μ_B and 2.79 ± 0.61 μ_B, respectively. This result confirms that the small magnetic moment of Sm ions arises from antiparallel coupling between the spin and the orbital magnetic moments. The spin and the orbital magnetic moments of Fe ions have been also estimated, as 1.13 ± 0.25 μ_B and 0.19 ± 0.04 μ_B, respectively.

Original language	English
Pages (from-to)	9525-9534
Number of pages	10
Journal	Journal of Physics Condensed Matter
Volume	14
Issue number	41
DOIs	https://doi.org/10.1088/0953-8984/14/41/309
Publication status	Published - 2002 Oct 21
Externally published	Yes

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics

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10.1088/0953-8984/14/41/309

Cite this

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title = "Orbital and spin moments in SmFe2 studied by means of white-x-ray magnetic diffraction",

abstract = "A magnetic structure of SmFe2 with a Laves phase crystalline structure was investigated by means of white-x-ray magnetic diffraction. The orbital and the spin magnetic form factors of Sm and Fe ions have been obtained as a function of momentum transfer. Their extrapolation to zero momentum transfer, according to the dipole approximation based on an atomic model, has given the values of the spin and the orbital magnetic moments of Sm ions as -2.54 ± 0.55 μB and 2.79 ± 0.61 μB, respectively. This result confirms that the small magnetic moment of Sm ions arises from antiparallel coupling between the spin and the orbital magnetic moments. The spin and the orbital magnetic moments of Fe ions have been also estimated, as 1.13 ± 0.25 μB and 0.19 ± 0.04 μB, respectively.",

author = "Hayato Miyagawa and Tetsuya Nakamura and Yasuhiro Watanabe and Masahisa Ito and Hiromichi Adachi and Hiroshi Kawata and Susumu Nanao",

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TY - JOUR

T1 - Orbital and spin moments in SmFe2 studied by means of white-x-ray magnetic diffraction

AU - Miyagawa, Hayato

AU - Nakamura, Tetsuya

AU - Watanabe, Yasuhiro

AU - Ito, Masahisa

AU - Adachi, Hiromichi

AU - Kawata, Hiroshi

AU - Nanao, Susumu

PY - 2002/10/21

Y1 - 2002/10/21

N2 - A magnetic structure of SmFe2 with a Laves phase crystalline structure was investigated by means of white-x-ray magnetic diffraction. The orbital and the spin magnetic form factors of Sm and Fe ions have been obtained as a function of momentum transfer. Their extrapolation to zero momentum transfer, according to the dipole approximation based on an atomic model, has given the values of the spin and the orbital magnetic moments of Sm ions as -2.54 ± 0.55 μB and 2.79 ± 0.61 μB, respectively. This result confirms that the small magnetic moment of Sm ions arises from antiparallel coupling between the spin and the orbital magnetic moments. The spin and the orbital magnetic moments of Fe ions have been also estimated, as 1.13 ± 0.25 μB and 0.19 ± 0.04 μB, respectively.

AB - A magnetic structure of SmFe2 with a Laves phase crystalline structure was investigated by means of white-x-ray magnetic diffraction. The orbital and the spin magnetic form factors of Sm and Fe ions have been obtained as a function of momentum transfer. Their extrapolation to zero momentum transfer, according to the dipole approximation based on an atomic model, has given the values of the spin and the orbital magnetic moments of Sm ions as -2.54 ± 0.55 μB and 2.79 ± 0.61 μB, respectively. This result confirms that the small magnetic moment of Sm ions arises from antiparallel coupling between the spin and the orbital magnetic moments. The spin and the orbital magnetic moments of Fe ions have been also estimated, as 1.13 ± 0.25 μB and 0.19 ± 0.04 μB, respectively.

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VL - 14

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JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

IS - 41

ER -

Orbital and spin moments in SmFe₂ studied by means of white-x-ray magnetic diffraction

Abstract

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