In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 50, No. 5S2 ( 2011-05-01), p. 05FD01-
Abstract:
Electrical and magnetic measurements for 1111 type Ca(Fe 1- x Co x )AsF and 11 type Fe(Se 1- x Te x ) have been performed under high pressure. Superconductivity appeared with Co substitution for Ca(Fe 1- x Co x )AsF. For superconducting Ca(Fe 1- x Co x )AsF, pressure does not enhance the superconductivity so much. Disorder induced by the Co substitution in the FeAs superconducting layer is considered to be related to the pressure dependence of T c . Pressure-induced superconductivity was observed for x = 0.0 and 0.05. For Fe(Se 1- x Te x ), T c exhibits the maximum value at x = 0.5 and decreases with increasing Te concentration. The enhancement of T c with pressure was suppressed by increasing Te concentration for Fe(Se 1- x Te x ) ( x ≧0.5). For non-superconducting FeTe, pressure-induced superconductivity was not detected under high pressure up to 19 GPa.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.1143/JJAP.50.05FD01
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2011
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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