Crystal and magnetic structures of Cr1/3NbSe2 from neutron diffraction

A. F. Gubkin; E. P. Proskurina; Y. Kousaka; E. M. Sherokalova; N. V. Selezneva; P. Miao; S. Lee; J. Zhang; Y. Ishikawa; S. Torii; T. Kamiyama; J. Campo; J. Akimitsu; N. V. Baranov

doi:10.1063/1.4939558

Crystal and magnetic structures of Cr_1/3NbSe₂ from neutron diffraction

A. F. Gubkin, E. P. Proskurina, Y. Kousaka, E. M. Sherokalova, N. V. Selezneva, P. Miao, S. Lee, J. Zhang, Y. Ishikawa, S. Torii, T. Kamiyama, J. Campo, J. Akimitsu, N. V. Baranov

研究成果 › 査読

12 被引用数 (Scopus)

抄録

Neutron diffraction measurements of the Cr intercalated niobium diselenide Cr_1/3NbSe₂ together with magnetization measurements have revealed that this compound exhibits ferromagnetic ordering below T_C = 96 K unlike a chiral helimagnetic order observed in the sulfide compound Cr_1/3NbS₂. As derived from neutron diffraction data, the Cr magnetic moments μ_Cr = 2.83 ± 0.03 μ_B in Cr_1/3NbSe₂ are aligned within basal plane. The discrepancy in the magnetic states of Cr_1/3NbS₂ and Cr_1/3NbSe₂ is ascribed to the difference in the preferential site occupation of Cr ions in crystal lattices. In Cr_1/3NbSe₂, the Cr ions are predominantly distributed over 2b Wyckoff site, which determines a centrosymmetric character of the crystal structure unlike Cr_1/3NbS₂, where the Cr ions are mainly located in 2c position and the crystal structure is non-centrosymmetric.

本文言語	English
論文番号	013903
ジャーナル	Journal of Applied Physics
巻	119
号	1
DOI	https://doi.org/10.1063/1.4939558
出版ステータス	Published - 1月 7 2016
外部発表	はい

ASJC Scopus subject areas

物理学および天文学（全般）

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10.1063/1.4939558

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title = "Crystal and magnetic structures of Cr1/3NbSe2 from neutron diffraction",

abstract = "Neutron diffraction measurements of the Cr intercalated niobium diselenide Cr1/3NbSe2 together with magnetization measurements have revealed that this compound exhibits ferromagnetic ordering below TC = 96 K unlike a chiral helimagnetic order observed in the sulfide compound Cr1/3NbS2. As derived from neutron diffraction data, the Cr magnetic moments μCr = 2.83 ± 0.03 μB in Cr1/3NbSe2 are aligned within basal plane. The discrepancy in the magnetic states of Cr1/3NbS2 and Cr1/3NbSe2 is ascribed to the difference in the preferential site occupation of Cr ions in crystal lattices. In Cr1/3NbSe2, the Cr ions are predominantly distributed over 2b Wyckoff site, which determines a centrosymmetric character of the crystal structure unlike Cr1/3NbS2, where the Cr ions are mainly located in 2c position and the crystal structure is non-centrosymmetric.",

author = "Gubkin, {A. F.} and Proskurina, {E. P.} and Y. Kousaka and Sherokalova, {E. M.} and Selezneva, {N. V.} and P. Miao and S. Lee and J. Zhang and Y. Ishikawa and S. Torii and T. Kamiyama and J. Campo and J. Akimitsu and Baranov, {N. V.}",

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T1 - Crystal and magnetic structures of Cr1/3NbSe2 from neutron diffraction

AU - Gubkin, A. F.

AU - Proskurina, E. P.

AU - Kousaka, Y.

AU - Sherokalova, E. M.

AU - Selezneva, N. V.

AU - Miao, P.

AU - Lee, S.

AU - Zhang, J.

AU - Ishikawa, Y.

AU - Torii, S.

AU - Kamiyama, T.

AU - Campo, J.

AU - Akimitsu, J.

AU - Baranov, N. V.

PY - 2016/1/7

Y1 - 2016/1/7

N2 - Neutron diffraction measurements of the Cr intercalated niobium diselenide Cr1/3NbSe2 together with magnetization measurements have revealed that this compound exhibits ferromagnetic ordering below TC = 96 K unlike a chiral helimagnetic order observed in the sulfide compound Cr1/3NbS2. As derived from neutron diffraction data, the Cr magnetic moments μCr = 2.83 ± 0.03 μB in Cr1/3NbSe2 are aligned within basal plane. The discrepancy in the magnetic states of Cr1/3NbS2 and Cr1/3NbSe2 is ascribed to the difference in the preferential site occupation of Cr ions in crystal lattices. In Cr1/3NbSe2, the Cr ions are predominantly distributed over 2b Wyckoff site, which determines a centrosymmetric character of the crystal structure unlike Cr1/3NbS2, where the Cr ions are mainly located in 2c position and the crystal structure is non-centrosymmetric.

AB - Neutron diffraction measurements of the Cr intercalated niobium diselenide Cr1/3NbSe2 together with magnetization measurements have revealed that this compound exhibits ferromagnetic ordering below TC = 96 K unlike a chiral helimagnetic order observed in the sulfide compound Cr1/3NbS2. As derived from neutron diffraction data, the Cr magnetic moments μCr = 2.83 ± 0.03 μB in Cr1/3NbSe2 are aligned within basal plane. The discrepancy in the magnetic states of Cr1/3NbS2 and Cr1/3NbSe2 is ascribed to the difference in the preferential site occupation of Cr ions in crystal lattices. In Cr1/3NbSe2, the Cr ions are predominantly distributed over 2b Wyckoff site, which determines a centrosymmetric character of the crystal structure unlike Cr1/3NbS2, where the Cr ions are mainly located in 2c position and the crystal structure is non-centrosymmetric.

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