Synthesis, crystal structure and magnetic property of Sm2-xCoxTi2-xNbxO7 (x = 0, 0.2, 0.4)

X. L. Li; Y. W. Song; H. Xiong; Y. Q. Jia; N. Matsushita; Y. Xuan

doi:10.1016/S0254-0584(01)00587-9

Synthesis, crystal structure and magnetic property of Sm_2-xCo_xTi_2-xNb_xO₇ (x = 0, 0.2, 0.4)

X. L. Li, Y. W. Song, H. Xiong, Y. Q. Jia, N. Matsushita, Y. Xuan

Micron School of Materials Science and Engineering

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

1 Scopus citations

Abstract

Sm_2-xCoxTi_2-xNb_xO₇ (x=0, 0.2, 0.4) were synthesized by a wet chemical method. The compounds possess pyrochlore structure with cubic face-central cell. The lattice parameter (a) is 1.0234nm for Sm₂Ti₂O₇, 1.0231nm for Sm_1.8Co_0.2Ti_1.8Nb_0.2O₇ and 1.0225nm for Sm_1.6Co_0.4Ti_1.6Nb_0.4O₇. Sm₂Ti₂O₇ may possess the Van Vleck paramagnetism. The variation of the magnetic susceptibility of Sm_2-xCo_xTi_2-xNb_xO₇ (x=0.2, 0.4) with temperature is similar to that of a ferrimagnet in the paramagnetic region. The satisfactory fitting to the experimental plot of the inverse susceptibility of Sm_2-xCo_xTi_2-xNb_xO₇ (x=0.2, 0.4) vs. temperature indicates that the compounds may be a canted ferrimagnet.

Original language	English
Pages (from-to)	625-631
Number of pages	7
Journal	Materials Chemistry and Physics
Volume	77
Issue number	3
DOIs	https://doi.org/10.1016/S0254-0584(01)00587-9
State	Published - 30 Jan 2003

Keywords

Canted ferrimagnet
Crystal structure
Pyrochlore compound
Semi-spin glass
Van Vleck paramagnetism

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10.1016/S0254-0584(01)00587-9

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title = "Synthesis, crystal structure and magnetic property of Sm2-xCoxTi2-xNbxO7 (x = 0, 0.2, 0.4)",

abstract = "Sm2-xCoxTi2-xNbxO7 (x=0, 0.2, 0.4) were synthesized by a wet chemical method. The compounds possess pyrochlore structure with cubic face-central cell. The lattice parameter (a) is 1.0234nm for Sm2Ti2O7, 1.0231nm for Sm1.8Co0.2Ti1.8Nb0.2O7 and 1.0225nm for Sm1.6Co0.4Ti1.6Nb0.4O7. Sm2Ti2O7 may possess the Van Vleck paramagnetism. The variation of the magnetic susceptibility of Sm2-xCoxTi2-xNbxO7 (x=0.2, 0.4) with temperature is similar to that of a ferrimagnet in the paramagnetic region. The satisfactory fitting to the experimental plot of the inverse susceptibility of Sm2-xCoxTi2-xNbxO7 (x=0.2, 0.4) vs. temperature indicates that the compounds may be a canted ferrimagnet.",

keywords = "Canted ferrimagnet, Crystal structure, Pyrochlore compound, Semi-spin glass, Van Vleck paramagnetism",

author = "Li, {X. L.} and Song, {Y. W.} and H. Xiong and Jia, {Y. Q.} and N. Matsushita and Y. Xuan",

year = "2003",

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doi = "10.1016/S0254-0584(01)00587-9",

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TY - JOUR

T1 - Synthesis, crystal structure and magnetic property of Sm2-xCoxTi2-xNbxO7 (x = 0, 0.2, 0.4)

AU - Li, X. L.

AU - Song, Y. W.

AU - Xiong, H.

AU - Jia, Y. Q.

AU - Matsushita, N.

AU - Xuan, Y.

PY - 2003/1/30

Y1 - 2003/1/30

N2 - Sm2-xCoxTi2-xNbxO7 (x=0, 0.2, 0.4) were synthesized by a wet chemical method. The compounds possess pyrochlore structure with cubic face-central cell. The lattice parameter (a) is 1.0234nm for Sm2Ti2O7, 1.0231nm for Sm1.8Co0.2Ti1.8Nb0.2O7 and 1.0225nm for Sm1.6Co0.4Ti1.6Nb0.4O7. Sm2Ti2O7 may possess the Van Vleck paramagnetism. The variation of the magnetic susceptibility of Sm2-xCoxTi2-xNbxO7 (x=0.2, 0.4) with temperature is similar to that of a ferrimagnet in the paramagnetic region. The satisfactory fitting to the experimental plot of the inverse susceptibility of Sm2-xCoxTi2-xNbxO7 (x=0.2, 0.4) vs. temperature indicates that the compounds may be a canted ferrimagnet.

AB - Sm2-xCoxTi2-xNbxO7 (x=0, 0.2, 0.4) were synthesized by a wet chemical method. The compounds possess pyrochlore structure with cubic face-central cell. The lattice parameter (a) is 1.0234nm for Sm2Ti2O7, 1.0231nm for Sm1.8Co0.2Ti1.8Nb0.2O7 and 1.0225nm for Sm1.6Co0.4Ti1.6Nb0.4O7. Sm2Ti2O7 may possess the Van Vleck paramagnetism. The variation of the magnetic susceptibility of Sm2-xCoxTi2-xNbxO7 (x=0.2, 0.4) with temperature is similar to that of a ferrimagnet in the paramagnetic region. The satisfactory fitting to the experimental plot of the inverse susceptibility of Sm2-xCoxTi2-xNbxO7 (x=0.2, 0.4) vs. temperature indicates that the compounds may be a canted ferrimagnet.

KW - Canted ferrimagnet

KW - Crystal structure

KW - Pyrochlore compound

KW - Semi-spin glass

KW - Van Vleck paramagnetism

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U2 - 10.1016/S0254-0584(01)00587-9

DO - 10.1016/S0254-0584(01)00587-9

M3 - Article

AN - SCOPUS:0037472258

SN - 0254-0584

VL - 77

SP - 625

EP - 631

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 3

ER -

Synthesis, crystal structure and magnetic property of Sm_2-xCo_xTi_2-xNb_xO₇ (x = 0, 0.2, 0.4)

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