Anomalous Electrical Resistivity of Bi-Sr-Ca-Cu-O System at High Temperature

The electrical resistivity of Bi-Sr-Ca-Cu-O and Bi(Pb)-Sr-Ca-Cu-O superconductors at high temperatures was studied in relation to superconducting properties. The resistivity of the samples with a low- T c phase showed hysteresis around 300 and 650°C between the heating and cooling processes. No hyst...

Full description

Saved in:
Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 29; no. 11A; p. L1995
Main Authors Nagai, Hiroshi, Kakuzen, Masahiro, Yokota, Masaru, Majima, Kazuhiko
Format Journal Article
LanguageEnglish
Published 01.11.1990
Online AccessGet full text

Cover

More Information
Summary:The electrical resistivity of Bi-Sr-Ca-Cu-O and Bi(Pb)-Sr-Ca-Cu-O superconductors at high temperatures was studied in relation to superconducting properties. The resistivity of the samples with a low- T c phase showed hysteresis around 300 and 650°C between the heating and cooling processes. No hysteresis was detected for nearly single phase high T c . For the low- T c samples, it was confirmed that the T c , the material resistivity and the high temperature resistivity were strongly dependent on the quenching temperature. Weight loss was detected around 300°C in the heating process, but it was not detected in the cooling process.
ISSN:0021-4922
1347-4065
DOI:10.1143/JJAP.29.L1995