In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 30, No. 1R ( 1991-01-01), p. 38-
Abstract:
In order to examine the dependence of the superconducting property of the double Cu-O layer system on the hole concentration, we measured the superconducting transition of Bi 2 Sr 2 Ca 1- x Y x Cu 2 O y (0≦ x ≦0.4) compounds in terms of complex susceptibility, χ=χ ′ -iχ ′′ . The samples were synthesized by a citrate sol-gel precursor technique. The main advantages of this method are the shorter reaction time, the elimination of some steps such as centrifugation, and a fine control of pH. X-ray diffraction analysis showed that each sample has a single phase, although χ for x =0.1 indicates the existence of different superconducting phases. It has been revealed that the superconducting transition temperature T c apparently depends on the hole concentration, and the highest T c (95.2 K) was achieved for around x =0.1. The profiles of χ for five samples with different values of x are discussed.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
1991
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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