Magnetic properties of hydroxy Co-Mica intercalation

M. Takahashi; S. Onuki; S. Ishio; K. Ohtsuka; M. Suda; M. Ono

doi:10.1016/0304-8853(88)90128-X

Magnetic properties of hydroxy Co-Mica intercalation

M. Takahashi, S. Onuki, S. Ishio, K. Ohtsuka, M. Suda, M. Ono

Research output: Contribution to journal › Article

2 Citations (Scopus)

Abstract

The magnetic properties of hydroxy Co-mica intercalation complexes in which Co forms a two-dimensional lattice between mica layers have been investigated. The concentration of Co was varied up to 22 wt%. Ferromagnetism with the easy axis of magnetization in the ab-plane (layer plane) appears above about 5 wt%. The Curie temperature shows only a slight increase from about 7 to 8 K with increasing x up to 22.4 wt%. The magnetic moment m at 4.2 K measured in magnetic fields up to 80 kOe is about 2.3μ_B (P_eff = 3.8μ_B), while P_eff at high temperatures obtained by the Curie constant is about 5.3μ_B. These magnetic properties are explained by the features of Co²⁺ ions surrounded by an octahedral crystal and by a formation of Co²⁺ clusters in the 2-dimensional lattice between mica layers.

Original language	English
Pages (from-to)	115-122
Number of pages	8
Journal	Journal of Magnetism and Magnetic Materials
Volume	75
Issue number	1-2
DOIs	https://doi.org/10.1016/0304-8853(88)90128-X
Publication status	Published - 1988 Nov

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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Takahashi, M., Onuki, S., Ishio, S., Ohtsuka, K., Suda, M., & Ono, M. (1988). Magnetic properties of hydroxy Co-Mica intercalation. Journal of Magnetism and Magnetic Materials, 75(1-2), 115-122. https://doi.org/10.1016/0304-8853(88)90128-X

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title = "Magnetic properties of hydroxy Co-Mica intercalation",

abstract = "The magnetic properties of hydroxy Co-mica intercalation complexes in which Co forms a two-dimensional lattice between mica layers have been investigated. The concentration of Co was varied up to 22 wt%. Ferromagnetism with the easy axis of magnetization in the ab-plane (layer plane) appears above about 5 wt%. The Curie temperature shows only a slight increase from about 7 to 8 K with increasing x up to 22.4 wt%. The magnetic moment m at 4.2 K measured in magnetic fields up to 80 kOe is about 2.3μB (Peff = 3.8μB), while Peff at high temperatures obtained by the Curie constant is about 5.3μB. These magnetic properties are explained by the features of Co2+ ions surrounded by an octahedral crystal and by a formation of Co2+ clusters in the 2-dimensional lattice between mica layers.",

author = "M. Takahashi and S. Onuki and S. Ishio and K. Ohtsuka and M. Suda and M. Ono",

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T1 - Magnetic properties of hydroxy Co-Mica intercalation

AU - Takahashi, M.

AU - Onuki, S.

AU - Ishio, S.

AU - Ohtsuka, K.

AU - Suda, M.

AU - Ono, M.

PY - 1988/11

Y1 - 1988/11

N2 - The magnetic properties of hydroxy Co-mica intercalation complexes in which Co forms a two-dimensional lattice between mica layers have been investigated. The concentration of Co was varied up to 22 wt%. Ferromagnetism with the easy axis of magnetization in the ab-plane (layer plane) appears above about 5 wt%. The Curie temperature shows only a slight increase from about 7 to 8 K with increasing x up to 22.4 wt%. The magnetic moment m at 4.2 K measured in magnetic fields up to 80 kOe is about 2.3μB (Peff = 3.8μB), while Peff at high temperatures obtained by the Curie constant is about 5.3μB. These magnetic properties are explained by the features of Co2+ ions surrounded by an octahedral crystal and by a formation of Co2+ clusters in the 2-dimensional lattice between mica layers.

AB - The magnetic properties of hydroxy Co-mica intercalation complexes in which Co forms a two-dimensional lattice between mica layers have been investigated. The concentration of Co was varied up to 22 wt%. Ferromagnetism with the easy axis of magnetization in the ab-plane (layer plane) appears above about 5 wt%. The Curie temperature shows only a slight increase from about 7 to 8 K with increasing x up to 22.4 wt%. The magnetic moment m at 4.2 K measured in magnetic fields up to 80 kOe is about 2.3μB (Peff = 3.8μB), while Peff at high temperatures obtained by the Curie constant is about 5.3μB. These magnetic properties are explained by the features of Co2+ ions surrounded by an octahedral crystal and by a formation of Co2+ clusters in the 2-dimensional lattice between mica layers.

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