In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 26, No. S3-2 ( 1987-01-01), p. 1347-
Abstract:
The effect of off-stoichiometry on superconductivity is studied in the iron-containing silicide Lu 2 Fe 3 Si 5 . The superconducting transition temperature has a maximum (∼6.0K) on the stoichiometry and decreases with a deviation from it (especially on the Fe- or Lu-rich side). The resistivity and susceptibility studies, together with the metallographic study, suggest that an increase of second phases on the Fe- or Lu-rich side enhances magnetic interactions to conduction electrons and thus results in the degradation of superconductivity. A number of the parameters are evaluated from the experimental data on both stoichiometric Lu 2 Fe 3 Si 5 and Y 2 Fe 3 Si 5 . The residual resistivity estimated from the slope of upper critical field agrees fairly well with the experimental value.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.7567/JJAPS.26S3.1347
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
1987
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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