Crystal Structure of the (K0.87Bi0.13)BiO3Superconductor

N. R. Khasanova; F. Izumi; T. Kamiyama; K. Yoshida; A. Yamamoto; S. Tajima

doi:10.1006/jssc.1998.8170

Crystal Structure of the (K_0.87Bi_0.13)BiO₃Superconductor

N. R. Khasanova, F. Izumi, T. Kamiyama, K. Yoshida, A. Yamamoto, S. Tajima

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

36 Citations (Scopus)

Abstract

The structure of a superconducting oxide (K_0.87Bi_0.13)BiO₃(T_c≈10.2 K) prepared under high pressure was analyzed by time-of-flight neutron powder diffraction. Rietveld refinement showed this compound to be a cubic perovskiteABO₃with space groupPm3m(No. 221) and lattice parametera=4.23377(3) Å. Refinement of occupation factors revealed the absence of oxygen vacancies and the substitution of Bi³⁺ions for 13% of K⁺ions at theAsite, presenting evidence for electron doping in this superconductor. Extraordinarily large atomic displacement parameters for theAand O sites are believed to reflect pronounced positional disorder mainly arising from the large difference in size between the K⁺and Bi³⁺ions.

Original language	English
Pages (from-to)	205-208
Number of pages	4
Journal	Journal of Solid State Chemistry
Volume	144
Issue number	1
DOIs	https://doi.org/10.1006/jssc.1998.8170
Publication status	Published - 1999 Apr
Externally published	Yes

ASJC Scopus subject areas

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

Access to Document

10.1006/jssc.1998.8170

Cite this

@article{e49d05999183407d9f595cc953ca6674,

title = "Crystal Structure of the (K0.87Bi0.13)BiO3Superconductor",

abstract = "The structure of a superconducting oxide (K0.87Bi0.13)BiO3(Tc≈10.2 K) prepared under high pressure was analyzed by time-of-flight neutron powder diffraction. Rietveld refinement showed this compound to be a cubic perovskiteABO3with space groupPm3m(No. 221) and lattice parametera=4.23377(3) {\AA}. Refinement of occupation factors revealed the absence of oxygen vacancies and the substitution of Bi3+ions for 13% of K+ions at theAsite, presenting evidence for electron doping in this superconductor. Extraordinarily large atomic displacement parameters for theAand O sites are believed to reflect pronounced positional disorder mainly arising from the large difference in size between the K+and Bi3+ions.",

author = "Khasanova, {N. R.} and F. Izumi and T. Kamiyama and K. Yoshida and A. Yamamoto and S. Tajima",

note = "Funding Information: This work has been partly supported by New Energy & Industrial Technology Development Organization (NEDO) for Research & Development based on the Industrial Science and Technology Frontier Program. Copyright: Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.",

year = "1999",

month = apr,

doi = "10.1006/jssc.1998.8170",

language = "English",

volume = "144",

pages = "205--208",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press Inc.",

number = "1",

}

TY - JOUR

T1 - Crystal Structure of the (K0.87Bi0.13)BiO3Superconductor

AU - Khasanova, N. R.

AU - Izumi, F.

AU - Kamiyama, T.

AU - Yoshida, K.

AU - Yamamoto, A.

AU - Tajima, S.

N1 - Funding Information: This work has been partly supported by New Energy & Industrial Technology Development Organization (NEDO) for Research & Development based on the Industrial Science and Technology Frontier Program. Copyright: Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.

PY - 1999/4

Y1 - 1999/4

N2 - The structure of a superconducting oxide (K0.87Bi0.13)BiO3(Tc≈10.2 K) prepared under high pressure was analyzed by time-of-flight neutron powder diffraction. Rietveld refinement showed this compound to be a cubic perovskiteABO3with space groupPm3m(No. 221) and lattice parametera=4.23377(3) Å. Refinement of occupation factors revealed the absence of oxygen vacancies and the substitution of Bi3+ions for 13% of K+ions at theAsite, presenting evidence for electron doping in this superconductor. Extraordinarily large atomic displacement parameters for theAand O sites are believed to reflect pronounced positional disorder mainly arising from the large difference in size between the K+and Bi3+ions.

AB - The structure of a superconducting oxide (K0.87Bi0.13)BiO3(Tc≈10.2 K) prepared under high pressure was analyzed by time-of-flight neutron powder diffraction. Rietveld refinement showed this compound to be a cubic perovskiteABO3with space groupPm3m(No. 221) and lattice parametera=4.23377(3) Å. Refinement of occupation factors revealed the absence of oxygen vacancies and the substitution of Bi3+ions for 13% of K+ions at theAsite, presenting evidence for electron doping in this superconductor. Extraordinarily large atomic displacement parameters for theAand O sites are believed to reflect pronounced positional disorder mainly arising from the large difference in size between the K+and Bi3+ions.

UR - http://www.scopus.com/inward/record.url?scp=0001966316&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0001966316&partnerID=8YFLogxK

U2 - 10.1006/jssc.1998.8170

DO - 10.1006/jssc.1998.8170

M3 - Article

AN - SCOPUS:0001966316

SN - 0022-4596

VL - 144

SP - 205

EP - 208

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

IS - 1

ER -

Crystal Structure of the (K_0.87Bi_0.13)BiO₃Superconductor

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this