SYNTHESIS AND SUPERCONDUCTING PROPERTIES OF (PB0.5CD0.5)SR-2(Y0.5CA0.5)CU2O7

Authors
MIN JR LIANG JK CHEN XL WANG C DONG C YU YD CHENG XR RAO GH
Citation
Jr. Min et al., SYNTHESIS AND SUPERCONDUCTING PROPERTIES OF (PB0.5CD0.5)SR-2(Y0.5CA0.5)CU2O7, Physica. C, Superconductivity, 245(3-4), 1995, pp. 281-286
Citations number
24
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
245
Issue
3-4
Year of publication
1995
Pages
281 - 286
Database
ISI
SICI code
0921-4534(1995)245:3-4<281:SASPO(>2.0.ZU;2-0
Abstract
The effect of synthesis conditions on (Pb0.5Cd0.5)Sr-2(Y0.5Ca0.5)Cu2O7 has been investigated. For the (Pb,Cd)-1212 phase, quenching is not n ecessary. Quenching the (Pb,Cd)-1212 phase exclusively suppresses its superconductivity, although quenching is favorable for the (Pb,Cu)-121 2 phase in removing the extra oxygen of the (Pb,Cu)O layers. On the ot her hand, annealing the (Pb,Cd)-1212 phase in flowing nitrogen leads t o a phase decomposition from Pb-1212 phase to Pb-3212 phase. In this p aper, we report the optimal synthesis condition for the (Pb,Cd)-1212 p hase by annealing the (Pb,Cd)-1212 phase at 970 degrees C in O-2 for 2 h.