Anisotropic magnetic diffuse scattering in an easy-plane type antiferromagnet ErNi2Ge2

Y. Tabata; Teruo Yamazaki; M. Okue; H. Nakamura; M. Matsuura

doi:10.1088/1742-6596/145/1/012078

Anisotropic magnetic diffuse scattering in an easy-plane type antiferromagnet ErNi₂Ge₂

Y. Tabata, Teruo Yamazaki, M. Okue, H. Nakamura, M. Matsuura

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

We report on neutron scattering studies of a rare earth intermetallic compound ErNi2Ge2. Polarized neutron scattering experiments revealed that the magnetic ordered moment m lies in ab-plane. Taking account of a lack of the third higher harmonic reflection, ErNi2Ge2 is considered to have a helical magnetic structure. The magnetic scattering profiles along the [100]- and the [110]-directions are well described by the sum of Gaussian and modified-Lorentzian terms, even far below TN, indicating that short-range orders coexist with a long-range order. Interestingly, the modified-Lorentzian-type diffuse scattering is not present in the profiles along the [001]-direction. The anisotropy of the diffuse scattering suggests that the short-range-order consists of one dimensional long-range helices along the c-axis.

Original language	English
Article number	012078
Journal	Journal of Physics: Conference Series
Volume	145
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/145/1/012078
Publication status	Published - 2009 Jan 1
Externally published	Yes
Event	4th International Conference on Highly Frustrated Magnetism 2008, HFM 2008 - Braunschweig, Germany Duration: 2008 Sept 7 → 2008 Sept 12

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1088/1742-6596/145/1/012078

Cite this

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title = "Anisotropic magnetic diffuse scattering in an easy-plane type antiferromagnet ErNi2Ge2 ",

abstract = "We report on neutron scattering studies of a rare earth intermetallic compound ErNi2Ge2. Polarized neutron scattering experiments revealed that the magnetic ordered moment m lies in ab-plane. Taking account of a lack of the third higher harmonic reflection, ErNi2Ge2 is considered to have a helical magnetic structure. The magnetic scattering profiles along the [100]- and the [110]-directions are well described by the sum of Gaussian and modified-Lorentzian terms, even far below TN, indicating that short-range orders coexist with a long-range order. Interestingly, the modified-Lorentzian-type diffuse scattering is not present in the profiles along the [001]-direction. The anisotropy of the diffuse scattering suggests that the short-range-order consists of one dimensional long-range helices along the c-axis.",

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T1 - Anisotropic magnetic diffuse scattering in an easy-plane type antiferromagnet ErNi2Ge2

AU - Tabata, Y.

AU - Yamazaki, Teruo

AU - Okue, M.

AU - Nakamura, H.

AU - Matsuura, M.

PY - 2009/1/1

Y1 - 2009/1/1

N2 - We report on neutron scattering studies of a rare earth intermetallic compound ErNi2Ge2. Polarized neutron scattering experiments revealed that the magnetic ordered moment m lies in ab-plane. Taking account of a lack of the third higher harmonic reflection, ErNi2Ge2 is considered to have a helical magnetic structure. The magnetic scattering profiles along the [100]- and the [110]-directions are well described by the sum of Gaussian and modified-Lorentzian terms, even far below TN, indicating that short-range orders coexist with a long-range order. Interestingly, the modified-Lorentzian-type diffuse scattering is not present in the profiles along the [001]-direction. The anisotropy of the diffuse scattering suggests that the short-range-order consists of one dimensional long-range helices along the c-axis.

AB - We report on neutron scattering studies of a rare earth intermetallic compound ErNi2Ge2. Polarized neutron scattering experiments revealed that the magnetic ordered moment m lies in ab-plane. Taking account of a lack of the third higher harmonic reflection, ErNi2Ge2 is considered to have a helical magnetic structure. The magnetic scattering profiles along the [100]- and the [110]-directions are well described by the sum of Gaussian and modified-Lorentzian terms, even far below TN, indicating that short-range orders coexist with a long-range order. Interestingly, the modified-Lorentzian-type diffuse scattering is not present in the profiles along the [001]-direction. The anisotropy of the diffuse scattering suggests that the short-range-order consists of one dimensional long-range helices along the c-axis.

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Anisotropic magnetic diffuse scattering in an easy-plane type antiferromagnet ErNi₂Ge₂

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