Superconductivity and crystal structure of Pb(Ba,Sr)2(Ln,Ca)Cu3Oy and Pb(Ba,Sr)2(Ln,Ce)2Cu3Oy(Ln

lanthanoid) with (Pb,Cu) double layers

Ayako Yamamoto, Yasuhiko Syono, Takeo Oku, Masayasu Nagoshi

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Pb(Ba,Sr)2(Ln,Ca)Cu3Oy (Pb2212, y=7.0-8.4) and Pb(Ba,Sr)2(Ln,Ce)2Cu3Oy (Pb2222, y=9.0-10.4) were synthesized, and crystal structure, phase transition and superconductivity were studied. The lanthanoid contraction was clearly observed in a relationship of 4f-electron number of Ln3+ versus cell volume of Pb2212, consistent with constant oxygen content for all of the lanthanoid substitutions. Transition temperature from oxygen rich phase to poor one was almost constant to be 580°C, in contrast to variation of the ortho-tetra transition temperature in Ba2LnCu3Oy.

Original languageEnglish
Pages (from-to)619-620
Number of pages2
JournalPhysica C: Superconductivity and its Applications
Volume185-189
Issue numberPART 1
DOIs
Publication statusPublished - 1991 Dec 1
Externally publishedYes

Fingerprint

Lanthanoid Series Elements
Superconductivity
Superconducting transition temperature
superconductivity
Crystal structure
transition temperature
Oxygen
crystal structure
oxygen
contraction
Substitution reactions
Phase transitions
substitutes
Electrons
cells
electrons

ASJC Scopus subject areas

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

Cite this

Superconductivity and crystal structure of Pb(Ba,Sr)2(Ln,Ca)Cu3Oy and Pb(Ba,Sr)2(Ln,Ce)2Cu3Oy(Ln : lanthanoid) with (Pb,Cu) double layers. / Yamamoto, Ayako; Syono, Yasuhiko; Oku, Takeo; Nagoshi, Masayasu.

In: Physica C: Superconductivity and its Applications, Vol. 185-189, No. PART 1, 01.12.1991, p. 619-620.

Research output: Contribution to journalArticle

@article{642ab4073deb436189ebd00e1d4f10f6,
title = "Superconductivity and crystal structure of Pb(Ba,Sr)2(Ln,Ca)Cu3Oy and Pb(Ba,Sr)2(Ln,Ce)2Cu3Oy(Ln: lanthanoid) with (Pb,Cu) double layers",
abstract = "Pb(Ba,Sr)2(Ln,Ca)Cu3Oy (Pb2212, y=7.0-8.4) and Pb(Ba,Sr)2(Ln,Ce)2Cu3Oy (Pb2222, y=9.0-10.4) were synthesized, and crystal structure, phase transition and superconductivity were studied. The lanthanoid contraction was clearly observed in a relationship of 4f-electron number of Ln3+ versus cell volume of Pb2212, consistent with constant oxygen content for all of the lanthanoid substitutions. Transition temperature from oxygen rich phase to poor one was almost constant to be 580°C, in contrast to variation of the ortho-tetra transition temperature in Ba2LnCu3Oy.",
author = "Ayako Yamamoto and Yasuhiko Syono and Takeo Oku and Masayasu Nagoshi",
year = "1991",
month = "12",
day = "1",
doi = "10.1016/0921-4534(91)92112-O",
language = "English",
volume = "185-189",
pages = "619--620",
journal = "Physica C: Superconductivity and its Applications",
issn = "0921-4534",
publisher = "Elsevier",
number = "PART 1",

}

TY - JOUR

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

T2 - lanthanoid) with (Pb,Cu) double layers

AU - Yamamoto, Ayako

AU - Syono, Yasuhiko

AU - Oku, Takeo

AU - Nagoshi, Masayasu

PY - 1991/12/1

Y1 - 1991/12/1

N2 - Pb(Ba,Sr)2(Ln,Ca)Cu3Oy (Pb2212, y=7.0-8.4) and Pb(Ba,Sr)2(Ln,Ce)2Cu3Oy (Pb2222, y=9.0-10.4) were synthesized, and crystal structure, phase transition and superconductivity were studied. The lanthanoid contraction was clearly observed in a relationship of 4f-electron number of Ln3+ versus cell volume of Pb2212, consistent with constant oxygen content for all of the lanthanoid substitutions. Transition temperature from oxygen rich phase to poor one was almost constant to be 580°C, in contrast to variation of the ortho-tetra transition temperature in Ba2LnCu3Oy.

AB - Pb(Ba,Sr)2(Ln,Ca)Cu3Oy (Pb2212, y=7.0-8.4) and Pb(Ba,Sr)2(Ln,Ce)2Cu3Oy (Pb2222, y=9.0-10.4) were synthesized, and crystal structure, phase transition and superconductivity were studied. The lanthanoid contraction was clearly observed in a relationship of 4f-electron number of Ln3+ versus cell volume of Pb2212, consistent with constant oxygen content for all of the lanthanoid substitutions. Transition temperature from oxygen rich phase to poor one was almost constant to be 580°C, in contrast to variation of the ortho-tetra transition temperature in Ba2LnCu3Oy.

UR - http://www.scopus.com/inward/record.url?scp=0026389321&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026389321&partnerID=8YFLogxK

U2 - 10.1016/0921-4534(91)92112-O

DO - 10.1016/0921-4534(91)92112-O

M3 - Article

VL - 185-189

SP - 619

EP - 620

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

IS - PART 1

ER -