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

Y. Tanaka, Tatsuo Fujii, Makoto Nakanishi, Y. Kusano, Y. Ikeda, J. Takada

Research output: Contribution to journalArticle

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 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 languageEnglish
Pages (from-to)328-330
Number of pages3
JournalMaterials Letters
Volume63
Issue number2
DOIs
Publication statusPublished - Jan 31 2009

Fingerprint

cobalt oxides
Intercalation
intercalation
Cobalt
Magnetic properties
magnetic properties
Oxides
synthesis
Magnetic moments
Magnetic susceptibility
Diffraction patterns
Lattice constants
Energy dispersive spectroscopy
lattice parameters
diffraction patterns
magnetic moments
Ions
magnetic permeability
X ray diffraction
Scanning electron microscopy

Keywords

  • AgI-intercalation
  • Misfit-layer cobalt oxide
  • Two dimensionality

ASJC Scopus subject areas

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

Cite this

Synthesis and magnetic properties of AgI intercalated Bi-Ca-Co-O misfit-layer cobalt oxide. / Tanaka, Y.; Fujii, Tatsuo; Nakanishi, Makoto; Kusano, Y.; Ikeda, Y.; Takada, J.

In: Materials Letters, Vol. 63, No. 2, 31.01.2009, p. 328-330.

Research output: Contribution to journalArticle

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AU - Fujii, Tatsuo

AU - Nakanishi, Makoto

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AU - Ikeda, Y.

AU - Takada, J.

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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.

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