Structure studies of CeAlO3

M. Tanaka; T. Shishido; H. Horiuchi; N. Toyota; D. Shindo; T. Fukuda

doi:10.1016/0925-8388(93)90194-R

Structure studies of CeAlO₃

M. Tanaka, T. Shishido, H. Horiuchi, N. Toyota, D. Shindo, T. Fukuda

SCI - Physics

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

40 Citations (Scopus)

Abstract

The crystal structure of CeAlO₃ was studied by single-crystal X-ray diffraction. The symmetry is tetragonal, a/c = 0.9922, with a small deformation from the ideal cubic lattice. The structure basically belongs to the socalled ideal perovskite type. The electron distribution of the bridging oxygen atoms of -Al-O-Al- of AlO₆ octahedra running along the a axes is considerably distorted from a spherical form. The Ce and other oxygen atoms are also slightly distorted. The aluminium atom shows no distortion. These phenomena can be successfully explained using an average structure of two statistical atom arrangements. Each arrangement is characterized by small deviations of oxygen and Ce atoms from their ideal positions of the basic perovskite-type structure and resembles an orthorhombic perovskite-type structure.

Original language	English
Pages (from-to)	87-89
Number of pages	3
Journal	Journal of Alloys and Compounds
Volume	192
Issue number	1-2
DOIs	https://doi.org/10.1016/0925-8388(93)90194-R
Publication status	Published - 1993 Feb 23

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/0925-8388(93)90194-R

Cite this

@article{aa49cf791e454af3bd5134b6e3fdc209,

title = "Structure studies of CeAlO3",

abstract = "The crystal structure of CeAlO3 was studied by single-crystal X-ray diffraction. The symmetry is tetragonal, a/c = 0.9922, with a small deformation from the ideal cubic lattice. The structure basically belongs to the socalled ideal perovskite type. The electron distribution of the bridging oxygen atoms of -Al-O-Al- of AlO6 octahedra running along the a axes is considerably distorted from a spherical form. The Ce and other oxygen atoms are also slightly distorted. The aluminium atom shows no distortion. These phenomena can be successfully explained using an average structure of two statistical atom arrangements. Each arrangement is characterized by small deviations of oxygen and Ce atoms from their ideal positions of the basic perovskite-type structure and resembles an orthorhombic perovskite-type structure.",

author = "M. Tanaka and T. Shishido and H. Horiuchi and N. Toyota and D. Shindo and T. Fukuda",

note = "Funding Information: This work was financially supported by the Foundation for Material Science and Technology of Japan.",

year = "1993",

month = feb,

day = "23",

doi = "10.1016/0925-8388(93)90194-R",

language = "English",

volume = "192",

pages = "87--89",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier BV",

number = "1-2",

}

TY - JOUR

T1 - Structure studies of CeAlO3

AU - Tanaka, M.

AU - Shishido, T.

AU - Horiuchi, H.

AU - Toyota, N.

AU - Shindo, D.

AU - Fukuda, T.

N1 - Funding Information: This work was financially supported by the Foundation for Material Science and Technology of Japan.

PY - 1993/2/23

Y1 - 1993/2/23

N2 - The crystal structure of CeAlO3 was studied by single-crystal X-ray diffraction. The symmetry is tetragonal, a/c = 0.9922, with a small deformation from the ideal cubic lattice. The structure basically belongs to the socalled ideal perovskite type. The electron distribution of the bridging oxygen atoms of -Al-O-Al- of AlO6 octahedra running along the a axes is considerably distorted from a spherical form. The Ce and other oxygen atoms are also slightly distorted. The aluminium atom shows no distortion. These phenomena can be successfully explained using an average structure of two statistical atom arrangements. Each arrangement is characterized by small deviations of oxygen and Ce atoms from their ideal positions of the basic perovskite-type structure and resembles an orthorhombic perovskite-type structure.

AB - The crystal structure of CeAlO3 was studied by single-crystal X-ray diffraction. The symmetry is tetragonal, a/c = 0.9922, with a small deformation from the ideal cubic lattice. The structure basically belongs to the socalled ideal perovskite type. The electron distribution of the bridging oxygen atoms of -Al-O-Al- of AlO6 octahedra running along the a axes is considerably distorted from a spherical form. The Ce and other oxygen atoms are also slightly distorted. The aluminium atom shows no distortion. These phenomena can be successfully explained using an average structure of two statistical atom arrangements. Each arrangement is characterized by small deviations of oxygen and Ce atoms from their ideal positions of the basic perovskite-type structure and resembles an orthorhombic perovskite-type structure.

UR - http://www.scopus.com/inward/record.url?scp=0027544292&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0027544292&partnerID=8YFLogxK

U2 - 10.1016/0925-8388(93)90194-R

DO - 10.1016/0925-8388(93)90194-R

M3 - Article

AN - SCOPUS:0027544292

SN - 0925-8388

VL - 192

SP - 87

EP - 89

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2

ER -

Structure studies of CeAlO₃

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this