A NEW SUPERCONDUCTOR IN LEAD CUPRATE (PB0.5B0.5)SR-2(Y0.5CA0.5)CU2PY

Authors
FENG QR ZHANG H YU DP GUO JD
Citation
Qr. Feng et al., A NEW SUPERCONDUCTOR IN LEAD CUPRATE (PB0.5B0.5)SR-2(Y0.5CA0.5)CU2PY, Physica. C, Superconductivity, 282, 1997, pp. 543-544
Citations number
5
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
282
Year of publication
1997
Part
2
Pages
543 - 544
Database
ISI
SICI code
0921-4534(1997)282:<543:ANSILC>2.0.ZU;2-I
Abstract
A new lead cuprate superconductor, (Pb0.5Ba0.5)Sr-2(Y0.5Ca0.5)Cu2Oy, W ith T-c(onset)=62 K and T-c(zero)=31 K, has been prepared. Barium ions occupy the part sites of the lead in the unit cell. The crystal param eters of this superconductor are a=3.82 Angstrom, c=11.93 Angstrom. Fo r one of the samples, an anomalous drop of resistance was observed aro und 230 K, but it disappeared after 4 thermocycles.