In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 27, No. 8A ( 1988-08-01), p. L1453-
Abstract:
Partial phase diagram of the BiO 1.5 , (Ca, Sr)O and CuO pseudoternary system at 1133 K has been determined by the X-ray diffraction method. The chemical composition range where the c ∼30 Å ( T c ∼80 K) phase becomes stable has been found in the vicinities of the metal ratio Bi/(Ca, Sr)/Cu between 2/3/2 and 2/2/3. A unique metal ratio 5/8/8 suitable for the c ∼36 Å ( T c ∼110 K) phase is found. A pellet, in which 85 volume % of it showed the diamagnetism at 4 K and the volume ratio of the high- T c phase vs low- T c phase was about 6/1, was synthesized by the firing at about 1148 K and following annealing at 1143, 1123 and 773 K.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.1143/JJAP.27.L1453
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
1988
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7
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