Superconductivities in the (Bi,Pb)-oxycarbonate system

M. Uehara, H. Nakata, Jun Akimitsu, T. Den, T. Kobayashi, Y. Matsui

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Two (Bi,Pb)-oxycarbonate superconductors have been found by resistivity and magnetization measurements. Transition temperatures are 41 K (54K) for the low-Tc phase (high-Tc phase). The crystal structures were analyzed by using the HRTEM and X-ray diffraction techniques. The lattice parameters were a0=3.821 A ̊, c0=39.444 A ̊ (a0=3.88 A ̊, c0=54.52 A ̊) for low-Tc phase (high-Tc phase) in the tetragonal unit cell. A crystal structure model is proposed in which the chemical formula for the low-Tc phase (high-Tc phase) is (Bi,Pb)2Sr4Cu2 CO3O8 ((Bi,Pb)2Sr6Cu3(CO3)2O10), which can be described as the combination of a single (double) Sr2CO3 block and a single (Bi,Pb)2Sr2O4 block.

Original languageEnglish
Pages (from-to)51-56
Number of pages6
JournalPhysica C: Superconductivity and its Applications
Volume213
Issue number1-2
DOIs
Publication statusPublished - Aug 1 1993
Externally publishedYes

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Superconductivity
superconductivity
Crystal structure
crystal structure
Superconducting materials
Superconducting transition temperature
Lattice constants
lattice parameters
Magnetization
transition temperature
X ray diffraction
magnetization
electrical resistivity
cells
diffraction
x rays

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Superconductivities in the (Bi,Pb)-oxycarbonate system. / Uehara, M.; Nakata, H.; Akimitsu, Jun; Den, T.; Kobayashi, T.; Matsui, Y.

In: Physica C: Superconductivity and its Applications, Vol. 213, No. 1-2, 01.08.1993, p. 51-56.

Research output: Contribution to journalArticle

Uehara, M. ; Nakata, H. ; Akimitsu, Jun ; Den, T. ; Kobayashi, T. ; Matsui, Y. / Superconductivities in the (Bi,Pb)-oxycarbonate system. In: Physica C: Superconductivity and its Applications. 1993 ; Vol. 213, No. 1-2. pp. 51-56.
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