Structural and magnetic properties of Ni2In-type (Mn1-xCux)66Ga34 compounds

H. Shiraishi; Y. Iguchi; K. Ohoyama; Y. Yamaguchi; K. Shimizu; T. Hori

doi:10.1016/S0304-8853(00)00741-1

Structural and magnetic properties of Ni₂In-type (Mn₁-_xCu_x)₆₆Ga₃₄ compounds

H. Shiraishi, Y. Iguchi, K. Ohoyama, Y. Yamaguchi, K. Shimizu, T. Hori

Institute for Materials Research (IMR)

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

11 Citations (Scopus)

Abstract

The magnetic, neutron diffraction (ND) and NMR experiments have been performed on (Mn_1-xCu_x)₆₆Ga₃₄ (x = 0.25-0.35). The δ-T curve shows a cusp at T_t after the disappearance of spontaneous magnetization. The x^-1-T curve shows a bend at T_N. The ND experiments exhibit the presence of an antiferromagnetic component lying in the basal plane for T_t ≤ T < TN. For T < T_t, a helical spin structure propagating in the c direction appears, changing the pitch of helix from 4.12C to 8.26C.

Original language	English
Pages (from-to)	1081-1082
Number of pages	2
Journal	Journal of Magnetism and Magnetic Materials
Volume	226-230
Issue number	PART II
DOIs	https://doi.org/10.1016/S0304-8853(00)00741-1
Publication status	Published - 2001 Jan 1

Keywords

Antiferromagnetism
Magnetic structure - incommensurate
Magnetization - temperature dependent
Neutron diffraction

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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abstract = "The magnetic, neutron diffraction (ND) and NMR experiments have been performed on (Mn1-xCux)66Ga34 (x = 0.25-0.35). The δ-T curve shows a cusp at Tt after the disappearance of spontaneous magnetization. The x-1-T curve shows a bend at TN. The ND experiments exhibit the presence of an antiferromagnetic component lying in the basal plane for Tt ≤ T < TN. For T < Tt, a helical spin structure propagating in the c direction appears, changing the pitch of helix from 4.12C to 8.26C.",

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AU - Shiraishi, H.

AU - Iguchi, Y.

AU - Ohoyama, K.

AU - Yamaguchi, Y.

AU - Shimizu, K.

AU - Hori, T.

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AB - The magnetic, neutron diffraction (ND) and NMR experiments have been performed on (Mn1-xCux)66Ga34 (x = 0.25-0.35). The δ-T curve shows a cusp at Tt after the disappearance of spontaneous magnetization. The x-1-T curve shows a bend at TN. The ND experiments exhibit the presence of an antiferromagnetic component lying in the basal plane for Tt ≤ T < TN. For T < Tt, a helical spin structure propagating in the c direction appears, changing the pitch of helix from 4.12C to 8.26C.

KW - Antiferromagnetism

KW - Magnetic structure - incommensurate

KW - Magnetization - temperature dependent

KW - Neutron diffraction

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