Synthesis and properties of the structurally one-dimensional cobalt oxide Ba1-xSrxCoO3 (0 ≤ × ≤ 0.5)

K. Yamaura; H. W. Zandbergen; K. Abe; R. J. Cava

doi:10.1006/jssc.1999.8313

Synthesis and properties of the structurally one-dimensional cobalt oxide Ba_1-xSr_xCoO₃ (0 ≤ × ≤ 0.5)

K. Yamaura, H. W. Zandbergen, K. Abe, R. J. Cava

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

88 Scopus citations

Abstract

The hexagonal perovskite solid solution Ba_1-xSr_xCoO₃ (0 ≤ × ≤ 0.5) was synthesized by treatment of cubic perovskite precursors at 500°C in high-pressure oxygen. The structure consists of parallel chains of face-sharing CoO₆ octahedra and alkaline-earth ion separators. All materials were found to be semiconducting. Seebeck coefficient measurements indicate that transport is by both electrons and holes. The slopes of the magnetic susceptibility vs temperature data suggest that Co is in the low-spin S=1/2 electronic configuration. The positive Curie-Weiss Θ_w's indicate a predominantly ferromagnetic spin interaction, and a complex magnetic state is seen at low temperature in the temperature-and field-dependent magnetic data.

Original language	English (US)
Pages (from-to)	96-102
Number of pages	7
Journal	Journal of Solid State Chemistry
Volume	146
Issue number	1
DOIs	https://doi.org/10.1006/jssc.1999.8313
State	Published - Aug 1999

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

Keywords

BaCoO
Chain structure
Hexagonal perovskite
Low-dimensional magnetism

Access to Document

10.1006/jssc.1999.8313

Cite this

@article{0e59f1cd6aee408ca075870c6d116cb0,

title = "Synthesis and properties of the structurally one-dimensional cobalt oxide Ba1-xSrxCoO3 (0 ≤ × ≤ 0.5)",

abstract = "The hexagonal perovskite solid solution Ba1-xSrxCoO3 (0 ≤ × ≤ 0.5) was synthesized by treatment of cubic perovskite precursors at 500°C in high-pressure oxygen. The structure consists of parallel chains of face-sharing CoO6 octahedra and alkaline-earth ion separators. All materials were found to be semiconducting. Seebeck coefficient measurements indicate that transport is by both electrons and holes. The slopes of the magnetic susceptibility vs temperature data suggest that Co is in the low-spin S=1/2 electronic configuration. The positive Curie-Weiss Θw's indicate a predominantly ferromagnetic spin interaction, and a complex magnetic state is seen at low temperature in the temperature-and field-dependent magnetic data.",

keywords = "BaCoO, Chain structure, Hexagonal perovskite, Low-dimensional magnetism",

author = "K. Yamaura and Zandbergen, {H. W.} and K. Abe and Cava, {R. J.}",

note = "Funding Information: We thank J. J. Krajewski for his TGA study of our preliminary samples and C. Felser and Z. Soos for helpful discussions. This work was supported in part by an Overseas Research Fellowship (K.Y.), administered by the Japan Science and Technology Corporation.",

year = "1999",

month = aug,

doi = "10.1006/jssc.1999.8313",

language = "English (US)",

volume = "146",

pages = "96--102",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press Inc.",

number = "1",

}

TY - JOUR

T1 - Synthesis and properties of the structurally one-dimensional cobalt oxide Ba1-xSrxCoO3 (0 ≤ × ≤ 0.5)

AU - Yamaura, K.

AU - Zandbergen, H. W.

AU - Abe, K.

AU - Cava, R. J.

N1 - Funding Information: We thank J. J. Krajewski for his TGA study of our preliminary samples and C. Felser and Z. Soos for helpful discussions. This work was supported in part by an Overseas Research Fellowship (K.Y.), administered by the Japan Science and Technology Corporation.

PY - 1999/8

Y1 - 1999/8

N2 - The hexagonal perovskite solid solution Ba1-xSrxCoO3 (0 ≤ × ≤ 0.5) was synthesized by treatment of cubic perovskite precursors at 500°C in high-pressure oxygen. The structure consists of parallel chains of face-sharing CoO6 octahedra and alkaline-earth ion separators. All materials were found to be semiconducting. Seebeck coefficient measurements indicate that transport is by both electrons and holes. The slopes of the magnetic susceptibility vs temperature data suggest that Co is in the low-spin S=1/2 electronic configuration. The positive Curie-Weiss Θw's indicate a predominantly ferromagnetic spin interaction, and a complex magnetic state is seen at low temperature in the temperature-and field-dependent magnetic data.

AB - The hexagonal perovskite solid solution Ba1-xSrxCoO3 (0 ≤ × ≤ 0.5) was synthesized by treatment of cubic perovskite precursors at 500°C in high-pressure oxygen. The structure consists of parallel chains of face-sharing CoO6 octahedra and alkaline-earth ion separators. All materials were found to be semiconducting. Seebeck coefficient measurements indicate that transport is by both electrons and holes. The slopes of the magnetic susceptibility vs temperature data suggest that Co is in the low-spin S=1/2 electronic configuration. The positive Curie-Weiss Θw's indicate a predominantly ferromagnetic spin interaction, and a complex magnetic state is seen at low temperature in the temperature-and field-dependent magnetic data.

KW - BaCoO

KW - Chain structure

KW - Hexagonal perovskite

KW - Low-dimensional magnetism

UR - http://www.scopus.com/inward/record.url?scp=0002358667&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0002358667&partnerID=8YFLogxK

U2 - 10.1006/jssc.1999.8313

DO - 10.1006/jssc.1999.8313

M3 - Article

AN - SCOPUS:0002358667

SN - 0022-4596

VL - 146

SP - 96

EP - 102

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

IS - 1

ER -