MUTUAL CONVERSION OF (BIPB)(2)SR2CAN-1CUNOX HTSCS WITH N=1, 2, 3 - TEMPERATURE AND OXYGEN PARTIAL-PRESSURE DEPENDENCE

Citation
F. Cellucci et al., MUTUAL CONVERSION OF (BIPB)(2)SR2CAN-1CUNOX HTSCS WITH N=1, 2, 3 - TEMPERATURE AND OXYGEN PARTIAL-PRESSURE DEPENDENCE, Nuovo cimento della Societa italiana di fisica. D, Condensed matter,atomic, molecular and chemical physics, biophysics, 16(10-11), 1994, pp. 1701-1708
Citations number
18
Categorie Soggetti
Physics
ISSN journal
03926737
Volume
16
Issue
10-11
Year of publication
1994
Pages
1701 - 1708
Database
ISI
SICI code
0392-6737(1994)16:10-11<1701:MCO(HW>2.0.ZU;2-7
Abstract
The transformation of the 2223 (n = 3) phase in the 2201 (n = 1) phase by heating the sample in Ar atmosphere was studied. The subsequent cy cling of the sample temperature and the oxygen enrichment of the gas p hase convert the 2201 (n = 1) phase in the 2223 (n = 3) phase in the p resence of the 2212 (n = 2) and Ca2PbO4 compound. The in situ resistiv ity measurements, T-c values and XRD carried out on the sample confirm these phase changes. The experiment indicates that this process is ox ygen dependent at low oxygen partial pressure.