Synthesis and crystal structure of Pb (Ba,Sr)2(Ln,Ce)2Cu3Oy (Ln: lanthanoid, y=9-10.4), a new member of the Pb system

Ayako Yamamoto, T. Oku, M. Nagoshi, D. Shindo, M. Kikuchi, T. Oikawa, K. Hiraga, Y. Syono

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Pb(Ba, Sr)2(Ln, Ce)2Cu3Oy (Ln: lanthanoid, y=9.0-10.4) with (Pb, Cu) double layers and (Ln, Ce) fluorite layers was designed and obtained as a single phase. The structure of Pb(Ba, Sr)2(Ln, Ce)2Cu3Oy, which was derived from Pb(Ba, Sr)2YCu3O y by replacing oxygen-defect Y layers with (Ln, Ce)2O2 layers, was confirmed by high-resolution electron microscopy. The microstructure of (Pb, Cu) double layers of a quenched specimen was examined by means of high-resolution image with an imaging plate. A slowly cooled specimen with an oxygen content of y=10.2 lost 1.2 oxygen atoms above 580°C with an abrupt and reversible transition. The nature of this phase transition was similar to that of PbBaSrYCu3Oy described in our previous paper. No superconductivity was found in Pb(Ba, Sr)2(Ln, Ce)2Cu3Oy in spite of the CuO2 doublet sheets, similar to Pb2Sr2LnCe Cu3Oy with (Ln, Ce) fluorite layers.

Original languageEnglish
Pages (from-to)155-165
Number of pages11
JournalPhysica C: Superconductivity and its Applications
Volume172
Issue number1-2
DOIs
Publication statusPublished - 1990 Dec 1
Externally publishedYes

Fingerprint

Lanthanoid Series Elements
Fluorspar
Crystal structure
Oxygen
crystal structure
synthesis
High resolution electron microscopy
fluorite
Image resolution
Superconductivity
Phase transitions
Imaging techniques
Atoms
Defects
Microstructure
high resolution
oxygen
oxygen atoms
electron microscopy
superconductivity

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Synthesis and crystal structure of Pb (Ba,Sr)2(Ln,Ce)2Cu3Oy (Ln : lanthanoid, y=9-10.4), a new member of the Pb system. / Yamamoto, Ayako; Oku, T.; Nagoshi, M.; Shindo, D.; Kikuchi, M.; Oikawa, T.; Hiraga, K.; Syono, Y.

In: Physica C: Superconductivity and its Applications, Vol. 172, No. 1-2, 01.12.1990, p. 155-165.

Research output: Contribution to journalArticle

Yamamoto, Ayako ; Oku, T. ; Nagoshi, M. ; Shindo, D. ; Kikuchi, M. ; Oikawa, T. ; Hiraga, K. ; Syono, Y. / Synthesis and crystal structure of Pb (Ba,Sr)2(Ln,Ce)2Cu3Oy (Ln : lanthanoid, y=9-10.4), a new member of the Pb system. In: Physica C: Superconductivity and its Applications. 1990 ; Vol. 172, No. 1-2. pp. 155-165.
@article{1cff1a621b1a4de09cd7766f35b7307a,
title = "Synthesis and crystal structure of Pb (Ba,Sr)2(Ln,Ce)2Cu3Oy (Ln: lanthanoid, y=9-10.4), a new member of the Pb system",
abstract = "Pb(Ba, Sr)2(Ln, Ce)2Cu3Oy (Ln: lanthanoid, y=9.0-10.4) with (Pb, Cu) double layers and (Ln, Ce) fluorite layers was designed and obtained as a single phase. The structure of Pb(Ba, Sr)2(Ln, Ce)2Cu3Oy, which was derived from Pb(Ba, Sr)2YCu3O y by replacing oxygen-defect Y layers with (Ln, Ce)2O2 layers, was confirmed by high-resolution electron microscopy. The microstructure of (Pb, Cu) double layers of a quenched specimen was examined by means of high-resolution image with an imaging plate. A slowly cooled specimen with an oxygen content of y=10.2 lost 1.2 oxygen atoms above 580°C with an abrupt and reversible transition. The nature of this phase transition was similar to that of PbBaSrYCu3Oy described in our previous paper. No superconductivity was found in Pb(Ba, Sr)2(Ln, Ce)2Cu3Oy in spite of the CuO2 doublet sheets, similar to Pb2Sr2LnCe Cu3Oy with (Ln, Ce) fluorite layers.",
author = "Ayako Yamamoto and T. Oku and M. Nagoshi and D. Shindo and M. Kikuchi and T. Oikawa and K. Hiraga and Y. Syono",
year = "1990",
month = "12",
day = "1",
doi = "10.1016/0921-4534(90)90655-X",
language = "English",
volume = "172",
pages = "155--165",
journal = "Physica C: Superconductivity and its Applications",
issn = "0921-4534",
publisher = "Elsevier",
number = "1-2",

}

TY - JOUR

T1 - Synthesis and crystal structure of Pb (Ba,Sr)2(Ln,Ce)2Cu3Oy (Ln

T2 - lanthanoid, y=9-10.4), a new member of the Pb system

AU - Yamamoto, Ayako

AU - Oku, T.

AU - Nagoshi, M.

AU - Shindo, D.

AU - Kikuchi, M.

AU - Oikawa, T.

AU - Hiraga, K.

AU - Syono, Y.

PY - 1990/12/1

Y1 - 1990/12/1

N2 - Pb(Ba, Sr)2(Ln, Ce)2Cu3Oy (Ln: lanthanoid, y=9.0-10.4) with (Pb, Cu) double layers and (Ln, Ce) fluorite layers was designed and obtained as a single phase. The structure of Pb(Ba, Sr)2(Ln, Ce)2Cu3Oy, which was derived from Pb(Ba, Sr)2YCu3O y by replacing oxygen-defect Y layers with (Ln, Ce)2O2 layers, was confirmed by high-resolution electron microscopy. The microstructure of (Pb, Cu) double layers of a quenched specimen was examined by means of high-resolution image with an imaging plate. A slowly cooled specimen with an oxygen content of y=10.2 lost 1.2 oxygen atoms above 580°C with an abrupt and reversible transition. The nature of this phase transition was similar to that of PbBaSrYCu3Oy described in our previous paper. No superconductivity was found in Pb(Ba, Sr)2(Ln, Ce)2Cu3Oy in spite of the CuO2 doublet sheets, similar to Pb2Sr2LnCe Cu3Oy with (Ln, Ce) fluorite layers.

AB - Pb(Ba, Sr)2(Ln, Ce)2Cu3Oy (Ln: lanthanoid, y=9.0-10.4) with (Pb, Cu) double layers and (Ln, Ce) fluorite layers was designed and obtained as a single phase. The structure of Pb(Ba, Sr)2(Ln, Ce)2Cu3Oy, which was derived from Pb(Ba, Sr)2YCu3O y by replacing oxygen-defect Y layers with (Ln, Ce)2O2 layers, was confirmed by high-resolution electron microscopy. The microstructure of (Pb, Cu) double layers of a quenched specimen was examined by means of high-resolution image with an imaging plate. A slowly cooled specimen with an oxygen content of y=10.2 lost 1.2 oxygen atoms above 580°C with an abrupt and reversible transition. The nature of this phase transition was similar to that of PbBaSrYCu3Oy described in our previous paper. No superconductivity was found in Pb(Ba, Sr)2(Ln, Ce)2Cu3Oy in spite of the CuO2 doublet sheets, similar to Pb2Sr2LnCe Cu3Oy with (Ln, Ce) fluorite layers.

UR - http://www.scopus.com/inward/record.url?scp=0025675061&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0025675061&partnerID=8YFLogxK

U2 - 10.1016/0921-4534(90)90655-X

DO - 10.1016/0921-4534(90)90655-X

M3 - Article

AN - SCOPUS:0025675061

VL - 172

SP - 155

EP - 165

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

IS - 1-2

ER -