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Title: Effect of oxygen partial pressure on the transformation between high T sub c and low T sub c phases in a Bi-Pb-Sr-Ca-Cu-O system

Abstract

The effect of oxygen partial pressure on the stability of the high {ital T}{sub {ital c}} phase ({gt}100 K) in a Bi-Pb-Sr-Ca-Cu-O system has been studied using resistivity, x-ray diffraction, and ac susceptibility measurements. It was observed that part of the high {ital T}{sub {ital c}} phase formed by sintering at 840 {degree}C in a low oxygen partial pressure of 1/10 atmosphere was transformed into a low {ital T}{sub {ital c}} phase ({similar to}80 K) and an insulating phase by heating at the same sintering temperature in O{sub 2} of one atmosphere. The original high {ital T}{sub {ital c}} phase was restored upon retreatment at the same temperature in a low oxygen partial pressure of 1/10 atmosphere.

Authors:
; ; ; ;  [1]
  1. Korea Standards Research Institute, P. O. Box 3, Taedok Science Town, Taejon 302-340, Korea (KR)
Publication Date:
OSTI Identifier:
5375344
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters; (USA)
Additional Journal Information:
Journal Volume: 55:12; Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BISMUTH OXIDES; SUPERCONDUCTIVITY; CALCIUM OXIDES; COPPER OXIDES; LEAD OXIDES; STRONTIUM OXIDES; ELECTRIC CONDUCTIVITY; EXPERIMENTAL DATA; HEATING; LOW TEMPERATURE; MAGNETIC SUSCEPTIBILITY; OXYGEN; PARTIAL PRESSURE; PHASE TRANSFORMATIONS; SINTERING; STABILITY; TRANSITION TEMPERATURE; VERY HIGH TEMPERATURE; X-RAY DIFFRACTION; ALKALINE EARTH METAL COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; COPPER COMPOUNDS; DATA; DIFFRACTION; ELECTRICAL PROPERTIES; ELEMENTS; FABRICATION; INFORMATION; LEAD COMPOUNDS; MAGNETIC PROPERTIES; NONMETALS; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SCATTERING; STRONTIUM COMPOUNDS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; 360204* - Ceramics, Cermets, & Refractories- Physical Properties; 656100 - Condensed Matter Physics- Superconductivity

Citation Formats

Lee, H K, Lee, K W, Ha, D H, Park, K, and Park, J C. Effect of oxygen partial pressure on the transformation between high T sub c and low T sub c phases in a Bi-Pb-Sr-Ca-Cu-O system. United States: N. p., 1989. Web. doi:10.1063/1.102467.
Lee, H K, Lee, K W, Ha, D H, Park, K, & Park, J C. Effect of oxygen partial pressure on the transformation between high T sub c and low T sub c phases in a Bi-Pb-Sr-Ca-Cu-O system. United States. doi:10.1063/1.102467.
Lee, H K, Lee, K W, Ha, D H, Park, K, and Park, J C. Mon . "Effect of oxygen partial pressure on the transformation between high T sub c and low T sub c phases in a Bi-Pb-Sr-Ca-Cu-O system". United States. doi:10.1063/1.102467.
@article{osti_5375344,
title = {Effect of oxygen partial pressure on the transformation between high T sub c and low T sub c phases in a Bi-Pb-Sr-Ca-Cu-O system},
author = {Lee, H K and Lee, K W and Ha, D H and Park, K and Park, J C},
abstractNote = {The effect of oxygen partial pressure on the stability of the high {ital T}{sub {ital c}} phase ({gt}100 K) in a Bi-Pb-Sr-Ca-Cu-O system has been studied using resistivity, x-ray diffraction, and ac susceptibility measurements. It was observed that part of the high {ital T}{sub {ital c}} phase formed by sintering at 840 {degree}C in a low oxygen partial pressure of 1/10 atmosphere was transformed into a low {ital T}{sub {ital c}} phase ({similar to}80 K) and an insulating phase by heating at the same sintering temperature in O{sub 2} of one atmosphere. The original high {ital T}{sub {ital c}} phase was restored upon retreatment at the same temperature in a low oxygen partial pressure of 1/10 atmosphere.},
doi = {10.1063/1.102467},
journal = {Applied Physics Letters; (USA)},
issn = {0003-6951},
number = ,
volume = 55:12,
place = {United States},
year = {1989},
month = {9}
}