Synthesis and magnetic properties of AgI intercalated Bi-Ca-Co-O misfit-layer cobalt oxide

Y. Tanaka; T. Fujii; M. Nakanishi; Y. Kusano; Y. Ikeda; J. Takada

doi:10.1016/j.matlet.2008.10.032

Synthesis and magnetic properties of AgI intercalated Bi-Ca-Co-O misfit-layer cobalt oxide

Y. Tanaka, T. Fujii, M. Nakanishi, Y. Kusano, Y. Ikeda, J. Takada

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

Abstract

We report the synthesis and magnetic properties of the AgI-intercalated misfit-layer cobalt oxide Bi_1.8Ca₂Co₂O_z. The AgI-intercalated Bi_1.8Ca₂Co₂O_z was prepared by the guest exchange reaction from the I₂-intercalated one. SEM-EDX analysis exhibited the stoichiometric ratio of Ag/I and the guest concentration as (AgI)Bi_1.8Ca₂Co₂O_z on the basis of Co = 2. After the AgI intercalation, the lattice parameter along the c-axis calculated from X-ray diffraction patterns was 21.68 Å, which was drastically increased not only from the non intercalated host phase (14.68 Å) but also from the I₂-intercalated phase (18.08 Å). After the AgI intercalation, magnetic susceptibility measurements revealed that the antiferromagnetic Weiss temperature and the effective magnetic moment in Co ion simultaneously decreased compared with the non-intercalated host compound.

Original language	English
Pages (from-to)	328-330
Number of pages	3
Journal	Materials Letters
Volume	63
Issue number	2
DOIs	https://doi.org/10.1016/j.matlet.2008.10.032
Publication status	Published - Jan 31 2009

Keywords

AgI-intercalation
Misfit-layer cobalt oxide
Two dimensionality

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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@article{2eb0d73cb4a44718a2c351666a29f51c,

title = "Synthesis and magnetic properties of AgI intercalated Bi-Ca-Co-O misfit-layer cobalt oxide",

abstract = "We report the synthesis and magnetic properties of the AgI-intercalated misfit-layer cobalt oxide Bi1.8Ca2Co2Oz. The AgI-intercalated Bi1.8Ca2Co2Oz was prepared by the guest exchange reaction from the I2-intercalated one. SEM-EDX analysis exhibited the stoichiometric ratio of Ag/I and the guest concentration as (AgI)Bi1.8Ca2Co2Oz on the basis of Co = 2. After the AgI intercalation, the lattice parameter along the c-axis calculated from X-ray diffraction patterns was 21.68 {\AA}, which was drastically increased not only from the non intercalated host phase (14.68 {\AA}) but also from the I2-intercalated phase (18.08 {\AA}). After the AgI intercalation, magnetic susceptibility measurements revealed that the antiferromagnetic Weiss temperature and the effective magnetic moment in Co ion simultaneously decreased compared with the non-intercalated host compound.",

keywords = "AgI-intercalation, Misfit-layer cobalt oxide, Two dimensionality",

author = "Y. Tanaka and T. Fujii and M. Nakanishi and Y. Kusano and Y. Ikeda and J. Takada",

year = "2009",

month = jan,

day = "31",

doi = "10.1016/j.matlet.2008.10.032",

language = "English",

volume = "63",

pages = "328--330",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier",

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T1 - Synthesis and magnetic properties of AgI intercalated Bi-Ca-Co-O misfit-layer cobalt oxide

AU - Tanaka, Y.

AU - Fujii, T.

AU - Nakanishi, M.

AU - Kusano, Y.

AU - Ikeda, Y.

AU - Takada, J.

PY - 2009/1/31

Y1 - 2009/1/31

N2 - We report the synthesis and magnetic properties of the AgI-intercalated misfit-layer cobalt oxide Bi1.8Ca2Co2Oz. The AgI-intercalated Bi1.8Ca2Co2Oz was prepared by the guest exchange reaction from the I2-intercalated one. SEM-EDX analysis exhibited the stoichiometric ratio of Ag/I and the guest concentration as (AgI)Bi1.8Ca2Co2Oz on the basis of Co = 2. After the AgI intercalation, the lattice parameter along the c-axis calculated from X-ray diffraction patterns was 21.68 Å, which was drastically increased not only from the non intercalated host phase (14.68 Å) but also from the I2-intercalated phase (18.08 Å). After the AgI intercalation, magnetic susceptibility measurements revealed that the antiferromagnetic Weiss temperature and the effective magnetic moment in Co ion simultaneously decreased compared with the non-intercalated host compound.

AB - We report the synthesis and magnetic properties of the AgI-intercalated misfit-layer cobalt oxide Bi1.8Ca2Co2Oz. The AgI-intercalated Bi1.8Ca2Co2Oz was prepared by the guest exchange reaction from the I2-intercalated one. SEM-EDX analysis exhibited the stoichiometric ratio of Ag/I and the guest concentration as (AgI)Bi1.8Ca2Co2Oz on the basis of Co = 2. After the AgI intercalation, the lattice parameter along the c-axis calculated from X-ray diffraction patterns was 21.68 Å, which was drastically increased not only from the non intercalated host phase (14.68 Å) but also from the I2-intercalated phase (18.08 Å). After the AgI intercalation, magnetic susceptibility measurements revealed that the antiferromagnetic Weiss temperature and the effective magnetic moment in Co ion simultaneously decreased compared with the non-intercalated host compound.

KW - AgI-intercalation

KW - Misfit-layer cobalt oxide

KW - Two dimensionality

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JO - Materials Letters

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