The effect of chemical and hydrostatic pressure has been studied systematically in a selected system belonging to the 1111 family of iron pnictide high-temperature superconductors. The results show a surprising similarity between the trend of critical temperature vs hydrostatic pressure for isoelectronic samples with di ff erent rare earths (RE) on the RE site and samples of the SmFeAsO(1-x)F(x) series with di ff erent doping levels. These results open new questions about the underlying mechanism for superconductivity in iron pnictides.
Pressure Effects in the Isoelectronic REFe(0.85)Ir(0.15)AsO System
Di Castro D;Dore P;Postorino P;
2011
Abstract
The effect of chemical and hydrostatic pressure has been studied systematically in a selected system belonging to the 1111 family of iron pnictide high-temperature superconductors. The results show a surprising similarity between the trend of critical temperature vs hydrostatic pressure for isoelectronic samples with di ff erent rare earths (RE) on the RE site and samples of the SmFeAsO(1-x)F(x) series with di ff erent doping levels. These results open new questions about the underlying mechanism for superconductivity in iron pnictides.File in questo prodotto:
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