Pressure-Effect Study on the High-Tc Superconductor Bi(Pb)-Sr-Ca-Cu-O System
- 1 August 1990
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 29 (8A) , L1396
- https://doi.org/10.1143/jjap.29.l1396
Abstract
Transiton temperatures (T c) and lattice constants of Bi(Pb)-Sr-Ca-Cu-O superconductors have been determined by a magnetic susceptibility measurement and a high-pressure X-ray diffraction measurement as a function of pressure. The T c of the high-T c phase increases monotonically with an increase in pressure up to 4.5 GPa. The initial coefficient is 2.0 K/GPa, which agrees with that of the low-T c phase reported previously. The linear compressibility along the c-axis direction, which is parallel to the bonding direction between the Cu atom and the apical oxygen, shows the same value for both phases.Keywords
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