Formation and magnetic properties of R2Fe17−xGaxC2 compounds prepared by arc-melting

The single phase compounds of R2Fe17−xGaxC2 (R = Y, Nd, Sm, Gd, Tb, Dy, Ho, Er and Tm;x = 2 and 3) with the rhombohedral Th2Zn17-type or hexagonal Th2Ni17-type structures were prepared by arc-melting. Their formation, structure and magnetic properties were studied. The substitution of Ga in the R2Fe...

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Published in:Journal of magnetism and magnetic materials 1993-10, Vol.127 (3), p.L267-L272
Main Authors: Shen, Bao-gen, Wang, Fang-wei, Kong, Lin-shu, Cao, Lei, Guo, Hui-qun
Format: Article
Language:English
Subjects:
Applied sciences
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Fe and its alloys
Magnetic properties and materials
Metals. Metallurgy
Physics
Studies of specific magnetic materials
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container_end_page L272
container_issue 3
container_start_page L267
container_title Journal of magnetism and magnetic materials
container_volume 127
creator Shen, Bao-gen
Wang, Fang-wei
Kong, Lin-shu
Cao, Lei
Guo, Hui-qun
description The single phase compounds of R2Fe17−xGaxC2 (R = Y, Nd, Sm, Gd, Tb, Dy, Ho, Er and Tm;x = 2 and 3) with the rhombohedral Th2Zn17-type or hexagonal Th2Ni17-type structures were prepared by arc-melting. Their formation, structure and magnetic properties were studied. The substitution of Ga in the R2Fe17C2 results in the increase of unit cell volume and the decrease of saturation magnetization. Curie temperatures have a small change when x ≤ 2, then decreases with x The Sm2Fe17−xGaxC2 compounds with x = 2 and 3 are found to have a uniaxial magnetocrystalline anisotropy and show a room-temperature anisotropy field of 95 and 93 kOe, respectively. Spin reorientation transitions are observed in the Er2Fe17−xGaxC2 and Tm2Fe17−xGaxC2 compounds. The substitution of Ga for some Fe in the R2Fe17C2 compounds with R = Er and Tm increases the uniaxial anisotropy of the R sublattices, resulting in the increase of spin reorientation temperature.
doi_str_mv 10.1016/0304-8853(93)90041-Y
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Their formation, structure and magnetic properties were studied. The substitution of Ga in the R2Fe17C2 results in the increase of unit cell volume and the decrease of saturation magnetization. Curie temperatures have a small change when x ≤ 2, then decreases with x The Sm2Fe17−xGaxC2 compounds with x = 2 and 3 are found to have a uniaxial magnetocrystalline anisotropy and show a room-temperature anisotropy field of 95 and 93 kOe, respectively. Spin reorientation transitions are observed in the Er2Fe17−xGaxC2 and Tm2Fe17−xGaxC2 compounds. 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subjects Applied sciences
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Fe and its alloys
Magnetic properties and materials
Metals. Metallurgy
Physics
Studies of specific magnetic materials
title Formation and magnetic properties of R2Fe17−xGaxC2 compounds prepared by arc-melting
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